Bulk Write API in Zoho CRM with PHP SDK: A Comprehensive Guide

Bulk Write API in Zoho CRM with PHP SDK: A Comprehensive Guide

Hi everyone and welcome to another amazing Kaizen week!

This week, we will discuss and explore Bulk Write API in detail, and how to implement the same using Zoho CRM PHP SDK. Please note that the information in the article holds true for Zoho CRM PHP SDK supporting version 5 of Zoho CRM APIs.

What is Bulk Write API?

The Bulk Write API enables you to efficiently insert, update, or upsert a large dataset into your CRM account. As this is an asynchronous API, the records will not be added immediately, instead a job will be scheduled to do so. You will receive a notification at the specified callback URL or you can periodically check the job status.

The Bulk Write API allows you to insert, update, or upsert up to 25,000 records in a single API call. This is much more than the maximum of 100 records that you can insert, update, or upsert using the Insert, Update, and Upsert Records API. 

When to use Bulk Write API?

  • When you want to schedule a job to import a huge volume of data in your CRM account.
  • When you want to insert, update, or upsert more than 100 records in a single API call. 
  • When you want to perform background processes like migration and initial data sync between Zoho CRM and external services.

However, the Bulk Write API consumes 500 credits per job, while the Insert, Update, and Upsert records API consumes 1 credit per 10 records. So, if you only need to insert, update, or upsert a small number of records (5,000 or less), it is economical to use the Records API as it will consume fewer credits.

Here are the major differences between Record APIs and Bulk Write API.

Insert, Update, Upsert Records API
Bulk Write API
You can insert, update, or upsert only up to 100 records per API call.
You can insert, update, or upsert 25000 records per API call.
The response is available instantly.
The response to the Bulk Write API request will not be available immediately. You can check the status of the job by polling for it, or you can wait for the status to be available in the callback URL after the job has completed.
The API consumes 1 credit per 10 records.
Bulk Write API consumes 500 credits per API call. 

Bulk Write API 

To insert, update, or upsert records in bulk, follow the below steps:
  1. Prepare your CSV file
  2. Upload your file in zip format
  3. Create a bulk write job
  4. Check the job status
  5. Download the result

1. Prepare the CSV file

To use the Bulk Write API, you must first create a CSV file containing the data you want to import to Zoho CRM. The first row of the CSV file must contain the field API names, and each subsequent row must contain the data. You can insert, update, or upsert records in a single module using one Bulk Write API call.

Input format for each data type:

Datatype
Description
Single Line
Accepts up to 255 characters.
Accepts alphanumeric and special characters.
Ex: Mike O'Leary
Multi-Line
Small - accepts up to 2000 characters.
Large - accepts up to 32000 characters.
Ex: This is a sample description.
Email
Accepts valid email IDs.
Phone
Accepts up to 30 characters. This limit may vary based on the value configured in 'Number of characters allowed' in the properties pop-up of the field, in UI.

Accepts only numeric characters and '+' (to add extensions). 
Ex: 9800000099
Picklist
You can pass an existing pick list value. If you give a new one, it is automatically added to the pick list set.
The pick list value accepts all alphanumeric and special characters.
Ex: auto mobile
Multiselect Picklist
You can either pass the existing pick list values separated by a semicolon(;) or add a new one.
The pick list value accepts all alphanumeric and special characters.
Ex: Analytics;Bigdata
Date
Accepts date in different formats as mentioned here.
Ex: 2023-05-03
DateTime
Accepts date in different formats as mentioned here.
Ex: 2023-05-03T20:39:19+05:30
Number
Accepts numbers up to 9 digits. This limit may vary based on the value configured in 'Maximum digits allowed' in the properties pop-up of the field, in UI. The accepted formats are mentioned here.
Accepts numeric values.
Ex1: 350
Ex2: 123,344
Currency
Before decimal point - accepts numbers up to 16 digits.  This limit may vary based on the value configured in 'Maximum digits allowed' in the properties pop-up of the field, in UI.
After decimal point - accepts precision up to 9 digits. This limit may vary based on the value configured in 'Number of decimal paces' in the properties pop-up of the field, in UI.
Please note that comma separated digits are accepted.
Ex1: 250000.90
Ex2: 123,456.657483
Decimal
Before the decimal point - accepts numbers up to 16 digits. This limit may vary based on the value configured in 'Maximum digits allowed' in the properties pop-up of the field, in UI.
After the decimal point - accepts precision up to 9 digits. This limit may vary based on the value configured in 'Number of decimal places' in the properties pop-up of the field, in UI.
Accepts comma separated numeric values.
Ex1: 250000.50
Ex2: 123,235.345
Percent
Accepts numbers up to 5 digits.
Accepts only numeric values.
Ex: 25
Long Integer
Accepts numbers up to 18 digits. This limit may vary based on the value configured in 'Maximum digits allowed' in the properties pop-up of the field, in UI.
Accepts only numeric values.
Ex: 0012345600012
Checkbox
Accepts only Boolean values(true,false).
Ex: true
URL
Accepts valid URLs.
Lookup
Accepts the unique ID of the record, which you can get through the get records API.
Use the dot(.) operator to link the record. For instance, if there is an account lookup in the Contacts module, you can give the column name as - Account.id
Ex: Account.id : 4150868000001136302
User
This is a default look-up field for users in Zoho CRM. Accepts the unique ID of the user, which you can get through the get users API.
Ex: User.id

Note:
  • To give multiple values for a multi-select pick list field, enclose them in double quotes("") and separate each value with the semicolon(;).
  • If your multi-line field has more than one line, input them directly by enclosing them in double quotes("").
  • You can only zip one CSV file to upload for bulk write. Adding more than one CSV file into the zip file will result in an error.
  • You can specify a specific format for your number, currency, decimal, date and datetime fields using format key.

Subform Data in Bulk Write API:

The Bulk Write API allows you to import and update records with subforms. To insert or update records with subforms, you must import the parent records first with Bulk Write API, and then the subform records with another Bulk Write API. 

For example, consider an instance where you have a subform named "Contact Details" in the Account module. The subform has the following fields - Contact_Name, Contact_Email and Contact_Phone. You must first create a csv file with the parent records, compress it as a zip file, upload it, and create a bulk write job. 



This is an example csv file. Note the Field API names are in the first row, and the record data is in the subsequent rows.

Once you have imported the parent records, you can upload the subform data CSV. When you prepare the subform data CSV file, it is mandatory to have the parent record ID in the subform data file, along with the subform data. 



This is a sample CSV file for the subform data. The subform data in each row will be added to the corresponding parent record. 

Multiselect Lookup Fields in Bulk Write API

To upload records with multiselect lookup fields, you can follow the same steps as for subforms. First, import the parent records. Then, import the multiselect lookup field data. The CSV file should contain both the parent record ID and the multiselect lookup field data. Please note that this method does not work for line items.

User Lookup in Bulk Write API

To import records with user lookup fields, you can include them in the same CSV file as the parent records. Use the field API name of the user lookup field in the CSV header, and add the unique IDs of the lookup records in the data column for each record.

Once you have prepared the CSV file, compress it as a zip file to upload in the next step. We will add examples of how to add subform data, user lookup and multiselect lookup field data in subsequent sections.

2. Upload your zip file

Once you have your csv file ready and compressed into a zip file, you should upload the same using a POST request. Use the following code snippet to upload the file.


<?php
namespace bulkwrite;

use com\zoho\crm\api\bulkwrite\FileBodyWrapper;
use com\zoho\crm\api\bulkwrite\BulkWriteOperations;
use com\zoho\crm\api\util\StreamWrapper;
use com\zoho\crm\api\bulkwrite\UploadFileHeader;
use com\zoho\crm\api\HeaderMap;

require_once "vendor/autoload.php";

class UploadFile
{
  public static function initialize()
  {
      // Add init code here.
      // Refer to this post for more details
  }

  public static function uploadFile1(string $orgID, string $absoluteFilePath)
  {
    $bulkWriteOperations = new BulkWriteOperations();
    $fileBodyWrapper = new FileBodyWrapper();
    $streamWrapper = new StreamWrapper(null, null, $absoluteFilePath);
    $fileBodyWrapper->setFile($streamWrapper);
    $headerInstance = new HeaderMap();
    //To indicate that this a bulk write operation
    $headerInstance->add(UploadFileHeader::feature(), "bulk-write");
    $headerInstance->add(UploadFileHeader::XCRMORG(), $orgID);
    //Call uploadFile method that takes FileBodyWrapper instance and headerInstance as parameter
    $response = $bulkWriteOperations->uploadFile($fileBodyWrapper, $headerInstance);
    // Add your code to handle the response received in the $response.
  }
}

UploadFile::initialize();
$orgID = "add_your_org_id_here"; // add your zgid which you can obtain using Get Organization API.
$absoluteFilePath = "/Users/test/bulk-write.zip"; //add the absolute file path of your zip file here.
UploadFile::uploadFile1($orgID, $absoluteFilePath);

The uploadFile() method takes two parameters: the organization ID ($orgID) and the absolute file path ($absoluteFilePath) of the file to be uploaded. Within the uploadFile() method, an instance of BulkWriteOperations is created to call the Bulk Write API.  This API is used to upload files to the Zoho File System. The HeaderMap instance is created to hold the necessary headers for the API request. The UploadFileHeader::feature() and UploadFileHeader::XCRMORG() methods are used to set the feature and organization ID headers, respectively. These headers are required to identify the type of operation being performed and the organization that the file is being uploaded.
 The uploadFile() method is called on the BulkWriteOperations instance, passing the FileBodyWrapper and HeaderMap as parameters. The response from the API call will be stored in the $response variable, which contains the file ID as well. We will use this file ID in the next step, creating a bulk write job.

We hope you found this post on the Bulk Write API useful. In next week's post, we will cover how to create a bulk write job, including lookup and user lookup fields and subform data. We will also show you how to check the job status and download the job result.

If you have any specific questions about the Bulk Write API, please leave a comment below,  or reach out to us at support@zohocrm.com. We are happy to help!

Thank you for reading! Stay tuned for more useful posts in the series. See you all next week!

    Access your files securely from anywhere


            Zoho Developer Community




                                    • Desk Community Learning Series


                                    • Digest


                                    • Functions


                                    • Meetups


                                    • Kbase


                                    • Resources


                                    • Glossary


                                    • Desk Marketplace


                                    • MVP Corner


                                    • Word of the Day


                                    • Ask the Experts



                                        Zoho Marketing Automation


                                                Manage your brands on social media



                                                      Zoho TeamInbox Resources

                                                        Zoho DataPrep Resources



                                                          Zoho CRM Plus Resources

                                                            Zoho Books Resources


                                                              Zoho Subscriptions Resources

                                                                Zoho Projects Resources


                                                                  Zoho Sprints Resources


                                                                    Qntrl Resources


                                                                      Zoho Creator Resources



                                                                          Zoho CRM Resources

                                                                          • CRM Community Learning Series

                                                                            CRM Community Learning Series


                                                                          • Kaizen

                                                                            Kaizen

                                                                          • Functions

                                                                            Functions

                                                                          • Meetups

                                                                            Meetups

                                                                          • Kbase

                                                                            Kbase

                                                                          • Resources

                                                                            Resources

                                                                          • Digest

                                                                            Digest

                                                                          • CRM Marketplace

                                                                            CRM Marketplace

                                                                          • MVP Corner

                                                                            MVP Corner





                                                                              Design. Discuss. Deliver.

                                                                              Create visually engaging stories with Zoho Show.

                                                                              Get Started Now


                                                                                Zoho Show Resources


                                                                                  Zoho Writer Writer

                                                                                  Get Started. Write Away!

                                                                                  Writer is a powerful online word processor, designed for collaborative work.

                                                                                    Zoho CRM コンテンツ








                                                                                      Nederlandse Hulpbronnen


                                                                                          ご検討中の方




                                                                                                • Recent Topics

                                                                                                • Syncing with Google calendar, Tasks and Events

                                                                                                  Is it possible to sync Zoho CRM calendar, task and events with Google Calendar's tasks and events. With the increasing adoption by many major tool suppliers to sync seamlessly with Google's offerings (for instance I use the excellent Any.do task planning
                                                                                                • Merge invoices

                                                                                                  This has come up three times in a month of me using the system. a client whom i do work for on a regular bases asked me to invoice separate jobs on a single invoice. I would then go and cancel the old invoices and make a new one. It would be great if i could just select the invoices and click merge to create a single invoice.
                                                                                                • Pipeline stages for product-led growth (PLG) subscription services

                                                                                                  (Estagios de pipeline com foco em serviço digital por assinatura (PLG)) Dear colleagues, I am writing to request assistance with a significant challenge I am currently facing. I manage a digital service that operates on a subscription-based model. I am
                                                                                                • Multiselect lookup in subform

                                                                                                  It would be SO SO useful if subforms could support a multiselect look up field! Is this in the works??
                                                                                                • Zoho CRM for Email ( Microsoft add on app) Feb 25, 2025

                                                                                                  We are currently experiencing issues with Zoho CRM for Outlook despite updating the Microsoft add on app and Zoho software to the latest versions. When working in Outlook on our Macs and PC's and 365 on the web, when we try to link an email in Outlook
                                                                                                • Sheet View for Reports

                                                                                                  We often need to filter our contacts in a way that is too complex for Custom Filters (which now allows filtering by Related Modules - amazing! - but doesn't allow for an *OR* relationship between the multiple filters) or Custom View (which does not yet
                                                                                                • Feature enhancement: Highlight rows based on a cell value

                                                                                                  Hello Sheet users, We're excited to announce a new feature enhacement, shaped directly by your valuable feedback! As you might know, conditional formatting is a great tool for anyone dealing with large data sets. Previously, if you’ve ever wanted to draw
                                                                                                • Urgent: Unable to Receive OTP Email for Portal User Registration in Zoho Creator

                                                                                                  I paid to enable the Portal User feature on 2/25, and followed the official instructions (Youtube video: Customer Portals | Zoho Creator) to set up the Portal User using my Gmail account. However, I am not receiving the OTP email and am unable to successfully
                                                                                                • Zoho not receiving verification email.

                                                                                                  I developed a website registration page and need to send verification email. I am using sendinblue for sending out the verification emails. Somehow, the mail is not being received by the Zoho users. Gmail, outlook, yahoo domains works fine but when I try to send the mail to my Zoho account I am not able to receive the mail. Can you please let me know what might be the issue?
                                                                                                • Restore deleted spreadsheet

                                                                                                  Hi all, I can not find my spreadsheet. It seems that my spreadsheet is deleted. Please, restore the spreadsheet. Thanks in advance
                                                                                                • Lookup fields can't be used for anything important

                                                                                                  Hi It seems the lookup fields are mostly.... informative, you can at most link stuff between modules... You can't use lookup fields in blueprints, you can't use them in layout rules or anything... It that correct?
                                                                                                • Function to check frequency of customer ordering patterns

                                                                                                  Hi, I'm no coder, so I thought I could make use of Chat GPT to generate some Deluge script to create a function that would check order frequency of our customers so that I could send an email if they go beyond their usual order pattern. Chat GPT and Claude
                                                                                                • Better Control over Team Ordering and Display

                                                                                                  Two feature requests for Zoho Desk team drop downs: The ability to change the order of teams, currently it's not in alphabetical order, which is confusing. I'm thinking a manual ordering via number or drag and drop, alphabetical order, and creation order
                                                                                                • Clear specific tag or tags from all leads

                                                                                                  I'm looking for a way to clear a specific tag from all Leads. I have a function when a tag is added to a lead they are added to a campaign and their status is set to "invited". I need to find a method to remove the tag. If I try to delete the tag to clear
                                                                                                • Cisco Webex Calling Intergration

                                                                                                  Hi Guys, Our organisation is looking at a move from Salesforce to Zoho. We have found there is no support for Cisco Webex Calling however? Is there a way to enable this or are there any apps which can provide this? Thanks!
                                                                                                • Has Anyone Else Built a State Machine into a Function?

                                                                                                  I'm in the process of building a state machine for lead lifecycle management within Zoho CRM, and I'm curious if anyone else has tried integrating a state machine into their Deluge functions, especially considering Zoho’s 12-function cap. I’ve managed
                                                                                                • Is there a way for a custom function to trigger a custom made email alert?

                                                                                                  Hi Zoho Team, We have currently maxed out our 30 workflows in one of our department and we are trying to find ways to make it more efficient. We usually use our workflows to send automated email notifications per team leader for approval of tickets. Is
                                                                                                • Unified WhatsApp Number Management in Zoho Desk and SalesIQ

                                                                                                  Dear Zoho Desk Support Team, We are currently utilizing both Zoho Desk and Zoho SalesIQ for our customer support operations. While both platforms offer WhatsApp integration, we are facing challenges due to the requirement of separate WhatsApp numbers
                                                                                                • Multi User Lookup field on the Zoho CRM iOS app.

                                                                                                  Hello all!   Hope you are all safe and sound.   We have now brought in support for the Multi User Lookup field on the Zoho CRM mobile app. Below are the enhancements that are supported in this update:   * Multi User Lookup field can be added through the
                                                                                                • Help with Deluge Script in Zoho SalesIQ (Input Variables Always Null)

                                                                                                  Hi everyone, I’m working on a Deluge script for Zoho SalesIQ, specifically for a block in Zobot. The script is supposed to: Check the visitor’s name when they start a chat. If the name is empty, return false; if a name is present, return true. However,
                                                                                                • Item/service subtotal

                                                                                                  Just discovered & really pleased that we can drag to re-order the line items in Sales orders & Invoices, a very nice feature which doesn't seem to be documented? It would be nice to be able to insert a subtotal as a line item to complete this great feature
                                                                                                • Hide/Show Certain Fields When Creating/Editing Invoices, Estimates, Etc.

                                                                                                  Hello there, I would like the ability to hide or show certain fields for different employees/roles in my company when they are creating or editing invoices, estimates, etc.. Most of the time, we don't use half of the fields shown on the create/edit invoice
                                                                                                • Is there a way to make an account inactive in ZoHo Desk

                                                                                                  We have a few Clients "Accounts" that we no longer do business with. It would be beneficial for them to not show up in lists. However, we want to go back and view tickets, time, etc.
                                                                                                • Any way to Associate a Recurring Invoice with Deal/Potential in Zoho CRM

                                                                                                  When we create an Invoice in Zoho Books, we have the option to associate that invoice with a Potential/Deal that is tied to that same customer. Can we do the same thing with Recurring Invoices? When creating a Recurring Invoice, I want to be able to Associate
                                                                                                • SSO/SAML

                                                                                                  Question - how are you guys handling SSO for Desk?  It seems the only options lead back to ADFS which is a dying technology, stupidly complicated to set up and configure (I mean, you can put that on your resume) and seems like overkill for SSO when AAD does it so much better and effortlessly.  We want to have our clients have SSO to log into our support portal and we want our Agents to have SSO as well. I shouldn't have to expose our server, turn on ADFS, configure it, install multiple clients (Sync
                                                                                                • Are downloadable product available in Zoho Commerce

                                                                                                  Hi all. We're considering switching to Zoho Commerce for our shop, but we sell software and remote services. Is there a features for downloadable products? I can't find any information about this. Thank you very much Alice
                                                                                                • Ask the Experts 17: Elevate Customer Communication With Multichannel & Instant Messaging

                                                                                                  Hello Everyone, Get ready for the opportunity to interact with Zoho Desk specialists! This month, we’re diving into Multichannel Operations, helping you manage customer interactions across various platforms seamlessly. Why Join? Customers reach out through
                                                                                                • ZOHO DESK

                                                                                                  I use Outlook Exchange to receive emails and want to forward them to Zoho Desk for better management. Additionally, I want to reply to emails in Zoho Desk and have them sent to customers via Outlook Exchange, but I don’t know how to configure it.
                                                                                                • Automating Custom Web Link Messages to Customers via Instant Messaging in Zoho Desk

                                                                                                  Hello, I am looking for assistance with Zoho Desk's Instant Messaging feature. Is there a way to automate the sending of a custom web link to customers every day at 6:30 PM? Any guidance or suggestions on how to achieve this would be greatly appreciated.
                                                                                                • Exciting Update: Multi WhatsApp Business Account (WABA) Support Now Available in SalesIQ!

                                                                                                  We’re pleased to share an important update that will enhance the way you manage your WhatsApp Business accounts (WABAs) within SalesIQ. With the launch of Multi WABA support, you can now connect and manage multiple brands more effectively, each under
                                                                                                • An error occurred while uploading the attachment.

                                                                                                  From the image below, attaching files is not possible via the website but is supported through the Mobile App.
                                                                                                • One time offer in Zoho Campaigns

                                                                                                  Hello! I have an idea to improve my sales. I would like to make a "one time offer" in Zoho Campaigns with a clock that will count down the bid validity period.  Is it possible? Regards.
                                                                                                • How to Initiate WhatsApp Message on SalesIQ?

                                                                                                  I've just activated a Business WhatsApp phone number through SalesIQ because of its touted omnichannel chat approach. Sounds exciting. I understand that when a customer sends me a WA message, I can reply to it on SalesIQ and keep the chat going, perfect.
                                                                                                • Multiple self client instances

                                                                                                  there a couple of details that deserve clarification / improvement in Zoho's OAuth 2: 1. for building true server apps - cloud to cloud REST - one has to choose Self Client when creating a new instance in API Console; Server-based Appplications is slightly
                                                                                                • Workdrive Oauth2 Token Isn't Refreshing

                                                                                                  I have set up oauth for a bunch of zoho apis and have never had a problem with oauth. With workdrive i am using the exact same template i usually use for the other zoho apps and it is not working. All requests will work for the first hour then stops so
                                                                                                • Zoho Desk - Delete an email conversation

                                                                                                  When using Zoho support desk I see an option to delete and edit conversations that are comments, BUT if the conversation was automatically added as a conversation from an email, then the option to delete it seems not to be available. Is there a way to
                                                                                                • Organizational Emails Send through Email Relay Server

                                                                                                  Hello, It would be great if the the Organizational Emails could send through the Email Relay Server as well. I often need to send email as someone else and since we use the GMail API option I have to use the organizational emails to do this.  We use Postmark for our Email Relay Server to increase deliver-ability which is something that we have had issues with when sending everything through Zohos servers. Also with postmark there is no need for each organizational email to have its own credentials
                                                                                                • Emoji support in workdrive

                                                                                                  Hello, We are using emojis in our filenames and folder to help visually find relevant data. Currently Workdrive is stripping out emojis and the rest of the filename (along with the suffix), making the file unreadable when they are synchronized with desktop.
                                                                                                • What is a 'user' in Zoho Surveys, and can I have multiple Offline Kiosks running?

                                                                                                  Is a 'user' the amount of people that can make and edit surveys on the website? I basically just want to know if I am able to have multiple Offline Kiosks running on multiple devices at the same time. Either on the Basic or Plus plan which both have 1
                                                                                                • Fundation / Non profit : Could you help ?

                                                                                                  Hi, We're about to handle a Medical research fundation, non profitable structure, what kind of prices could we hope from you ? Could you help us ? We would need Survey, automated campaign and ZIA Thanks in advance
                                                                                                • Next Page