Kaizen #103 - Bulk Write API using PHP SDK (v5) - Part I
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:
- Prepare your CSV file
- Upload your file in zip format
- Create a bulk write job
- Check the job status
- 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 | 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
Centralize Knowledge. Transform Learning.
All-in-one knowledge management and training platform for your employees and customers.
New to Zoho Recruit?
Zoho Developer Community
New to Zoho LandingPage?
Zoho LandingPage Resources
New to Zoho Survey?
New to Zoho CRM Plus?
Deliver unforgettable customer experiences
New to Zoho CRM Plus?
Deliver unforgettable customer experiences
New to Zoho Marketing Plus?
Everything you need to run your marketing
New to Zoho Marketing Plus?
Everything you need to run your marketing
New to Bigin?
Topic Participants
Anu Abraham
Sticky Posts
Kaizen #198: Using Client Script for Custom Validation in Blueprint
Nearing 200th Kaizen Post – 1 More to the Big Two-Oh-Oh! Do you have any questions, suggestions, or topics you would like us to cover in future posts? Your insights and suggestions help us shape future content and make this series better for everyone.Kaizen #226: Using ZRC in Client Script
Hello everyone! Welcome to another week of Kaizen. In today's post, lets see what is ZRC (Zoho Request Client) and how we can use ZRC methods in Client Script to get inputs from a Salesperson and update the Lead status with a single button click. In thisKaizen #222 - Client Script Support for Notes Related List
Hello everyone! Welcome to another week of Kaizen. The final Kaizen post of the year 2025 is here! With the new Client Script support for the Notes Related List, you can validate, enrich, and manage notes across modules. In this post, we’ll explore howKaizen #217 - Actions APIs : Tasks
Welcome to another week of Kaizen! In last week's post we discussed Email Notifications APIs which act as the link between your Workflow automations and you. We have discussed how Zylker Cloud Services uses Email Notifications API in their custom dashboard.Kaizen #216 - Actions APIs : Email Notifications
Welcome to another week of Kaizen! For the last three weeks, we have been discussing Zylker's workflows. We successfully updated a dormant workflow, built a new one from the ground up and more. But our work is not finished—these automated processes are
New to Zoho TeamInbox?
Zoho TeamInbox 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
Design. Discuss. Deliver.
Zoho Show Resources
Get Started. Write Away!
Writer is a powerful online word processor, designed for collaborative work.
Zoho CRM コンテンツ
-
オンラインヘルプ
-
Webセミナー
-
機能活用動画
-
よくある質問
-
Ebook
-
-
Zoho Campaigns
- Zoho サービスのWebセミナー
その他のサービス コンテンツ
Nederlandse Hulpbronnen
ご検討中の方
Recent Topics
New in Smart Prompt: Record Assistant for contextual assistance, and support for new AI models
Smart Prompt helps teams stay informed and move faster by providing relevant suggestions where work happens in CRM. With this update, Smart Prompt becomes more adaptable to your organization’s AI preferences. You can now choose which Large Language ModelImproved Integration Failure Information (And Notification Options)
Hi, When an attachment service for example fails, you just get "Field x - Error", I can check the field it is failing on and find nothing wrong, same file size, type, dimensions, etc. so more information as to the actual issue would be helpful. And anChange User Role in a Form
Hi, When in a form, it would be good (And consistent) to be able to change the user role/permission like you can with Shared Reports, All Entries or the actual User itself, rather than having to delete the users permission and then add it back again withIncrease the "Maximum Saved Entries per User" Options Limit
Hi, You can create lots of saved entries, yet the Limit when you apply one is 25, we may often expect 32 to be in draft, and therefore want to enforce that, can we increase the limit of this field from 25 to 100 (As you can just turn it off and have moreProduct Updates in Zoho Workplace applications | December 2025
Hello Workplace Community, Let’s take a look at the new features and enhancements that went live across all Workplace applications this December. Zoho Mail Block emails without notifying the sender Block emails without sending a rejection notificationZoho CRM for Gmail Extension Not Working in Brave Browser?
Is anyone able to get the Zoho CRM Chrome Extension working in the Brave browser? They're both built on the Chromium platform and every other Chrome Extension works with the exception of Zoho CRM for Gmail so any ideas here?Set Frozen Cells in the Report Settings
Hi, It would be nice to be able to set the frozen cells in the report Settings, and have an option if this is fixed or can be changed after loading (On the next load it still goes back to the Settings). Thanks DanMicrosoft Teams now available as an online meeting provider
Hello everyone, We're pleased to announce that Zoho CRM now supports Microsoft Teams as an online meeting provider—alongside the other providers already available. Admins can enable Microsoft Teams directly from the Preferences tab under the MeetingsTip of the week #26: Import/ Export calendars in Zoho Calendar.
Any calendar on the web or calendars that you create in any other calendar application can be imported in to Zoho Calendar. This will help you to add the events from the calendars that you import to your Zoho Calendar. You also have the option to exportAdd Zoho Forms to Zoho CRM Plus bundle
Great Zoho apps like CRM and Desk have very limited form builders when it comes to form and field rules, design, integration and deployment options. Many of my clients who use Zoho CRM Plus often hit limitations with the built in forms in CRM or Desk and are then disappointed to hear that they have to additionally pay for Zoho Forms to get all these great forms functionalities. Please consider adding Zoho Forms in the Zoho CRM Plus bundle. Best regards, Mladen Svraka Zoho Certified Consultant andSocial icons, open in new tab?
Hello, I have two social icons on my footer, Facebook and Psychology Today. Clicking on the Facebook icon opens a new tab, the Psychology Today icon does not. I would like them both to open a new tab. Am I missing a setting somewhere?Real-Time Screen Annotation During Zoho Cliq Screen Sharing
Hi Zoho Support Team, Hope you're doing well. We’d like to request the addition of real-time screen annotation tools during screen sharing sessions in Zoho Cliq video calls. 🔍 What We're Looking For: The ability for the presenter—and optionally, otherAutofill address using smart fields mapped over the pdf document
Hi, I'm using mail merge to map smart fields onto PDF documents I plan to distribute for signing. I already have a Zoho Sign subscription. When mapping smart fields from the Employee form, I only see the permanent and current addresses which include theHow do I cap employee leave accrual
HI there, How do I cap an employee's leave accrual? The policy is that you accrue 15 days leave annually (1.25 days a month) and once you reach 15 days, you wont accrue more until you take leave. Thank you!Open sub form from a button as a popup form
Is there a way within a form to use similar code as below to show a button in the form when clicked opens the subform for data to be added to the record being viewed in the form OpenUrl("#Form:<Customer_Delivery_Address>?<Delivery_Address>=" + input.ID,"popupDont have backup option in setting
Hi guys. I started using zoho book a week ago. I bought premium package yet I don't have backup option in setting. I hope anyone can help me find a solution. Thanks in advanceMaking Tags Mandatory
When creating an expense, is it possible to make the Tags field mandatory? I see the option in settings to make other fields mandatory, like Merchant, Description, Customer, etc, but nothing about Tags. Thanks! KevinIs there a plan to integrate zoho voice with zoho books?
Hello, Is there a plan to integrate zoho voice with zoho books? Right now we are using the Twilio SMS integration into zoho books, but have recently decided to switch to zoho voice for calls and sms. Is there a plan to integrate zoho voice natively intoPass variables to Zoho Desk via URL to create a fast new ticket landing page
We are integrating our phone system into Zoho Desk. Currently when a helpdesk agent answers the phone, a soft client opens a new tab with zoho desk at the new case page. https://desk.zoho.com/support/companyname/ShowHomePage.do#Cases/new We would likeZoho Books Extension: What Happens If Custom Fields Already Exist?
When developing Zoho Books extensions, what happens if the target Zoho Books organization already has a custom field with the same API name as one defined in the extension? I’m asking because we originally created an on-Books version of this functionality,Modular Permission Levels
We need more modular Permissions per module in Books we have 2 use cases that are creating problems We need per module export permission we have a use case where users should be able to view the sales orders but not export it, but they can export otherFree Webinar on 21 January: Looking back at Zoho Mail in 2025
Hello Zoho Community! Curious about how Zoho Mail evolved in 2025? Wondering how these updates can make your everyday email work simpler? We’ve got a session you won’t want to miss. In our Zoho Mail 2025 recap webinar, we’ll walk you through the key featuresCliq Networks users can see all other network users contact information
Is there a way to hide user contact information from each user in networks? I would only like the users to see the admin's contact information, not other users. Network users information shared by defaultZoho Sheet - Printing - Page Breaks and Printing Customization
I think the title is descriptive enough in that I cannot find help documentation on a simple task of adding in page brakes for separating pages on print. ThanksMissing the "Find & Merge Duplicates" choice
Hi, I am missing the "Find & Merge Duplicates" choice. I looked under the "More Actions" menu in Contacts, Accounts, Vendors, and Leads and it is not there. I have full permissions. Please assist me on finding this feature. Thanks!OAuth integration issues
I'm experiencing persistent OAuth errors when trying to connect Make with Zoho API. I've tried multiple approaches but keep encountering the following issues: First error: 'Invalid Redirect Uri - Redirect URI passed does not match with the one configured'Marketing Tip #16: Ideal sizes and formats for adding images to your online store
Images can make (or break) your storefront experience. When your banners and product photos follow the right sizes and aspect ratios, your store looks cleaner, loads faster, and feels more trustworthy—especially on mobile. Here are recommended image sizesImprove WhatsApp Module in Zoho CRM
The current WhatsApp module UI in Zoho CRM feels cluttered and complex, especially when handling high volumes of conversations. It would be great to enhance the WhatsApp module UI/UX by adopting a clean and simplified interface similar to Bigin CRM’sBlueprint transitions on locked records
We use the ability to automatically lock records (quotes, sales orders, etc.) based on criteria, such as stage. For instance, if a quote has been sent to a client, the quote is then locked for further edits. Our ideal quote stage process is: Draft>Sent>Won.Enhance productivity with the revamped Zoho Sheet View
Hello folks, For some time now, you've been able to use the Zoho Sheet View to quickly edit multiple records or to insert a batch of new records. Its tabular interface allows users to engage in these tasks productively. Despite this, the existing SheetNo OR Filter for Views with a Related Modules Criteria
We would like to create a Deal View where the User can see all their deals. For that, we would need an OR to connect the criteria. One of the Fields is a "multiselect User", these (Related Modules Criteria) can only be Filter with an AND. Even betweenChat to Lead
Can I convert a Chat to a Lead?Limit maximum entries for subform - depending on fields entry
Hi Zoho! I have a form with a subform in it. I'd like to have limitation for the row number depending on an entry in a drop-down field in the main form (If the field in the main form is marked "Answer1" - Limit the entries to 1 row, if the field is "Answer2" to have 2 rows limitation, "Answer3" = no limitation at all) Can this be done? Thanks RavidSave HTML Snippet Page as PDF with Dynamic Data in Zoho Creator (Working Solution)
Hi Zoho Creator Community 👋, I faced a common challenge while working with HTML Snippet Pages — I needed to generate a PDF with dynamic data and save it back into the record automatically. Here’s the working solution that might help others. Use CaseMake Camera Overlay & Recording Controls Visible in All Screen-Sharing Options
Hi Zoho WorkDrive Team, Hope you are doing well. We would like to request an improvement to the screen-recording experience in Zoho WorkDrive. Current Limitation: At the moment the recording controls are visible only inside the Zoho WorkDrive tab. WhenRebranding Options for Zoho One
We need the addition of rebranding and white-labeling settings directly within the Zoho One Admin Panel. This feature should allow organizations to customize the unified portal with their own logo, brand colors, and custom domain mapping (e.g., portal.company.com).Tip #57- Accessibility Controls in Zoho Assist: Mobility- 'Insider Insights'
Remote support should be easy to navigate for everyone. For users with mobility-related accessibility needs, long sessions and complex navigation can be challenging. Zoho Assist’s Mobility Accessibility Controls simplify interaction through keyboard-basedTo print Multiple delivery notes in batches
In Zoho Books, we can print a Delivery Note from an Invoice using the Print Delivery Note option, but it is non-editable and always prints all line items from the invoice. Our requirement is to deliver invoiced items in batches and print delivery notesUPLOAD A CREATED PDF AUTOMATICALLY
Using the html header pdf+print button, I have managed to find a way to have a user create a pdf using entered form data. Using the schedule button, I can have a "file uploaded" pdf mailed to someone as an attachment. The missing piece is to be able to add the pdf, created in that html page to a file upload field automatically? Right now one has to save it to computer and then upload it in a FILE UPLOAD FIELD. Any help would appreciated !Consolidated Department-wise Payroll Cost Summary Report
Hello Zoho Payroll Team and Community, I am writing to discuss a reporting requirement regarding department-level expense tracking within Zoho Payroll. As we scale and manage salary distribution for employees across multiple departments, such as Accounts,Next Page