Kaizen #96 Automatic Mail-Merge Document Creation Using Zoho CRM APIs

Kaizen #96 Automatic Mail-Merge Document Creation Using Zoho CRM APIs

Efficient communication and personalized document generation are crucial for maintaining strong customer relationships in your business. Manual document generation can be time-consuming, repetitive and error-prone, decreasing productivity and customer satisfaction. You can solve this with automatic document generation by creating merged documents from predefined mail merge templates.
With Zoho CRM's mail merge templates you can create personalized documents, including forms, envelopes, and letters, by utilizing variables also known as merge fields. These templates enable you to merge data from variables, ensuring accurate information is incorporated into the documents without the need for manual data entry for each record. For additional information, please consult the guidelines on Managing Mail Merge Templates. 

In Zoho CRM, you can automate document generation using its mail merge template APIs. You can send, sign, and download customized documents automatically. 
Send Mail Merge API : To send emails to users using mail merge template. You can also attach files either as inline images or separate attachments with the email through the API.
Sign Mail Merge API : To sign and approve a merged document.
Download Mail Merge API: To download a mail merged document.

Let us discuss two use cases where these APIs are used. Assume you manage your business for a technological company, Zylker Technologies, using Zoho CRM. 

Prerequisites
  • Create a connector with required scopes. For the below use cases a connector with the below scopes was created -ZohoSign.documents.ALL, ZohoCRM.modules.ALL, ZohoWriter.documentEditor.ALL, ZohoWriter.Merge.ALL, ZohoCRM.settings.mailmerge.CREATE

Use Case 1: Using Mail Merge APIs for sending Letter of Intent for customers
 Let us consider a scenario where you want to send a LOI (Letter of Intent) to be signed by your customer. A Letter of Intent is a formal document that contains a preliminary agreement and commitment to move forward with the deal, outlining key terms and conditions. You can create a mail merge template for your LOI with merge fields from your Customer module. You can find mail merge templates in Zoho CRM UI under Setup > Customization > Templates > Mail Merge. Refer the below image for a sample LOI mail merge template. 

Sample Mail Merge Template for Letter of Intent

Note that the merge fields given in the mail merge template are fields from Accounts module (renamed as Customers) with additional custom fields.
You can automate sending the LOI to your customer using a custom button with an associated function for the Customers module. In this case, a custom button "send LOI" is added as shown in the screenshot below.
Screenshot of Customer module showing sendLOI button

The below function calls sign mail merge API which sends the merged letter of intent document to your customer for signing.  The customer will receive an email notification containing the document which can be signed using Zoho Sign. Sign mail merge API's response includes a Zoho Writer document link that can be used to track the signing status. In the below function, the system will send mail to the customer along with the mail-merged document for them to sign, and it will store the link to track the sign status in a custom URL field named Document Sign Details.  This field allows you to access and review the document from your record conveniently.

customerMap = zoho.crm.getRecordById("Accounts",customerId.toLong());
name = customerMap.get("Account_Name");
to_email = customerMap.get("customer_Email");
merge_template_name = "LOI";
//Replace with your mail merge template name
info name;
info to_email;
input_json = "{'sign_mail_merge':[{'mail_merge_template':{'name':'" + merge_template_name + "'},'file_name':'letterofintent','sign_in_order':false,'signers':[{'recipient_name':'" + name + "','action_type':'sign','recipient':{'type':'email','value':'" + to_email + "'}}]}]}";
header_data = Map();
header_data.put("Content-Type","application/json");
response = invokeurl
[
url :"https://www.zohoapis.com/crm/v5/Accounts/" + customerId.toLong() + "/actions/sign_mail_merge"
type :POST
parameters:input_json
connection:"zylkercrm"
];
//Replace above connection name with your connection name
info response;
details = response.getJSON("sign_mail_merge").toJSONList();
link = "";
for each  detail in details
{
link = detail.get("details").get("report_link");
info link;
}
mp = Map();
mp.put("Document_Sign_Details",link);
update = zoho.crm.updateRecord("Accounts",customerId.toLong(),mp);
return "";

The system sends a merged document, as shown in the screenshot below, to the customer.
Final Merged Document sent to Customer

Use case 2: Using mail merge API for sending different types of SLA 
Assume that in Zylker Technologies, when you sell a product, your customer can opt for different types of after sales support . A check list field - Support Type - indicates type of support - Standard or Premium.  SLA document(Service Level Agreement) is a contract between you and your customer that defines level of service and the metrics used to measure the service.The service level provided to different customers will be different based on the kind of support they opted for and you need to send different SLA document based on this.  This can be achieved by maintaining two SLA mail merge templates. 
Similar to use case 1, a custom button can invoke the below function and in the function, a mail merge template is selected based on the type of service provided. The support_Type fields gets the value of the "Support Type" check list. Merge mail template is decided based on this field and send mail merge API is called to send the merged document. After sending the mail with appropriate mail merge template document, the function downloads the merged document and uploads it to the Attachments related list. 
Using download mail merge API, the merged document is obtained and then attached to the Contacts module with the attachFile function.


customerMap = zoho.crm.getRecordById("Accounts",customerId.toLong());
to_email = customerMap.get("customer_Email");
from_email = customerMap.get("Owner").get("email");
support_Type = customerMap.get("Support_Type");
if (support_Type == "Premium" )
{
merge_template_name = "SLA_Premium";
}
else 
{
merge_template_name = "SLA_Std";
}
//Replace above merge template names with your merge template names
input_json = "{'send_mail_merge':[{'mail_merge_template':{'name':'" + merge_template_name + "'},'from_address':{'type':'email','value':'" + from_email + "'},'to_address':[{'type':'email','value':'" + to_email + "'}],'subject':'Hi there','type':'attachment','attachment_name':'testdocument','message':'Big Deal'}]}";
header_data = Map();
header_data.put("Content-Type","application/json");
response = invokeurl
[
url :"https://www.zohoapis.com/crm/v5/Accounts/" + customerId + "/actions/send_mail_merge"
type :POST
parameters:input_json
connection:"zylkercrm"
];
//Replace above connection name with your connection name
input_json = "{'download_mail_merge':[{'mail_merge_template':{'name':'" + merge_template_name + "'},'output_format':'pdf'}]}";
header_data = Map();
header_data.put("Content-Type","application/json");
//The merged document is stored to file_object
file_object = invokeurl
[
url :"https://www.zohoapis.com/crm/v5/Accounts/" + customerId.toLong() + "/actions/download_mail_merge"
type :POST
parameters:input_json
connection:"zylkercrm"
];
//Replace above connection name with your connection name
response = zoho.crm.attachFile("Accounts",customerId,file_object);
return "";

The benefits of using the mail merge template APIs from Zoho CRM, which enable automated document generation, are highlighted in this article. These APIs enable the easy customization of the documents like Letters of Intent (LOIs), Service Level Agreements (SLAs), Request for Proposal (RFPs), etc. Businesses can increase efficiency, accuracy, and customer happiness by automating this procedure.
We hope you found this article useful. We will be back next week with another interesting topic. If you have any questions, write to us at support@zohocrm.com or let us know in the comment section. 

    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





                                                          Manage your brands on social media



                                                                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

                                                                                    • 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

                                                                                                          • Tables for Europe Datacenter customers?

                                                                                                            It's been over a year now for the launch of Zoho Tables - and still not available für EU DC customers. When will it be available?
                                                                                                          • Guided Conversations - Ticket Creation

                                                                                                            Hi there, Using Guided Conversations to Take Customer Data and apply it into a Support Ticket for internal use, Is there a way to take multiple Textual Variables Inputs (A series of questions), and have the answers all appear in the Description of the
                                                                                                          • How to send certain invoices for Approval based on condition?

                                                                                                            To streamline operations, I need the invoices to go for approval when certain conditions are met. For example, if my staff gives a discount of x amount, it must go for approval. If there is no discount, then the invoice will be approved automatically.
                                                                                                          • Unable to continue payment

                                                                                                            Hi, I want to make a payment for my email subscription, but I cannot proceed with the payment because my NITKU is invalid. In Indonesia, the NITKU consists of 22 digits, but Zoho only provides 20 digits, causing my NITKU to be invalid. Please help me
                                                                                                          • Is there a way to show contact emails in the Account?

                                                                                                            I know I can see the emails I have sent and received on a Contact detail view, but I want to be able to see all the emails that have been sent and received between all an Accounts Contacts on the Account Detail view. That way when I see the Account detail
                                                                                                          • Massive spam pretending to come from our address – is this a Zoho security issue?

                                                                                                            Hi, We’ve been receiving more and more suspicious emails lately — many of them clearly look like scams. But yesterday, we got an email that appeared to be sent from our own address, which was very concerning. We're starting to wonder if this might be
                                                                                                          • Cant recieve mails

                                                                                                            I’m having an issue with my external IMAP account not fetching any emails into Zoho Mail, even though the connection test says “Success”. I can send, if someone sends an email to me. my original directory (home.pl host) recieves it in their portal but
                                                                                                          • Zoho Sheet Autofit Data

                                                                                                            While using Autofit Data function in Zoho Sheets with Devnagri Maratji or Hindi Fonts, a word or a number, it keeps couple of characters outside the right side border.
                                                                                                          • Enhancements to finance suite integrations

                                                                                                            Update on the migration (October 28, 2025): Starting this week (October 29 tentatively), we’ll begin migrating Zoho CRM users to Zoho Books as integration users. This means actions will now run under each user’s own Zoho Books access, instead of the admin’s.
                                                                                                          • Edit 'my' Notes only

                                                                                                            The permissions around Notes should be more granular, and allow to user to be able to edit the notes he created only. The edit Notes permission is useful as it allows the user to correct any mistakes or add information as needed. However, with this same
                                                                                                          • How do I filter contacts by account parameters?

                                                                                                            Need to filter a contact view according to account parameter, eg account type. Without this filter users are overwhelmed with irrelevant contacts. Workaround is to create a custom 'Contact Type' field but this unbearable duplicity as the information already
                                                                                                          • Job Alerts for Candidates

                                                                                                            hi All, I have 2 questions relating to sharing job details with candidates. 1. is there a way to notify candidates that meet certain criteria of current jobs available? eg. I run a candidate search, and identify 50 candidates that might be suitable. Can
                                                                                                          • Add multiple users to a task

                                                                                                            When I´m assigning a task it is almost always related to more than one person. Practical situation: When a client request some improvement the related department opens the task with the situation and people related to it as the client itself, the salesman
                                                                                                          • Enhancing Task Accuracy: Automatically notify the owners upon Task duplication.

                                                                                                            Hello Everyone, A Custom function is a user-written set of code to achieve a specific requirement. Set the required conditions needed as when to trigger using the Workflow rules (be it Tasks / Project) and associate the custom function to it. The requirement
                                                                                                          • How to export all line-item descriptions for a specific item in Zoho Books?

                                                                                                            I am trying to audit a specific item (“Item X”) that has been invoiced multiple times with different line-level descriptions. Here’s the situation: I am using Zoho Books (Professional). Each invoice may contain the same item but with different descriptions
                                                                                                          • Show/ hide specific field based on user

                                                                                                            Can someone please help me with a client script to achieve the following? I've already tried a couple of different scripts I've found on here (updating to match my details etc...) but none of them seem to work. No errors flagged in the codes, it just
                                                                                                          • Where are Kanban swimlanes

                                                                                                            So i've been playing with Zoho Projects Kanban view a bit more. It appears that task lists are being used as the Kanban columns, which makes sense from the implementation point of view but not the logical one.  Kanban columns are statuses that a task can flow through, while a task list has been a logical way to organize related tasks and relate them to a mislestone. In other words a task in a particular task can go through several stages while remaining in the same task list. After doing some research
                                                                                                          • Tip 19: How to display images in Pages using ZML snippets

                                                                                                            Hi folks, We're back with another tip on how to use Zoho Markup Language (ZML) to create interactive pages in Zoho Creator. You can use ZML snippets to add various kinds of components to your pages and structure them in meaningful ways. That's not all, though—using ZML you can ensure your application is automatically compatible with all kinds of devices without any inconsistencies. We often get questions from users about how to invoke Deluge scripts within ZML code. Here's a simple use case for adding
                                                                                                          • Can zoho swign format block text spacing automatically when prefilled from zoho crm?

                                                                                                            I'm sending zoho sign template from zoho crm, so that zoho crm pre-populates most fields. I have existing pdf documents that i am having signed. I have no ability to change the pdf documents, they are standardized government forms. The problem I am facing
                                                                                                          • Forced Logouts - Daily and More Frequent

                                                                                                            In the last month or so, I've been getting "power logged out" of all of my Zoho apps at least daily, sometimes more frequently. This happens in the same browser session on the same computer, and I need to re-login to each app separately after this happens.
                                                                                                          • Zoho Inventory / Finance Suite - Add feature to prevent duplicate values in Item Unit field

                                                                                                            I've noticed that a client has 2 values the same in the Unit field on edit/create Items. This surprised me as why would you have 2 units with the same name. Please consider adding a feature which prevents this as it seems to serve no purpose.
                                                                                                          • Reference lookup field values in Client script

                                                                                                            hello all, I'm using a "ZDK.Apps.CRM.Products.searchByCriteria" function call, which is returning the matching records correctly; however, one of the fields is a lookup field which I need the associated data. I believe there is a way to get this data
                                                                                                          • In App Auto Refresh/Update Features

                                                                                                            Hi,    I am trying to use Zoho Creator for Restaurant management. While using the android apps, I reliased the apps would not auto refresh if there is new entries i.e new kitchen order ticket (KOT) from other users.   The apps does received notification but would not auto refresh, users required to refresh the apps manually in order to see the new KOT in the apps.    I am wondering why this features is not implemented? Or is this feature being considered to be implemented in the future? With the
                                                                                                          • Every time an event is updated, all participants receive an update email. How can I deactivate this?

                                                                                                            Every time an event is updated in Zoho CRM (e.g. change description, link to Lead) every participant of this meeting gets an update email. Another customer noticed this problem years ago in the Japanese community: https://help.zoho.com/portal/ja/community/topic/any-time-an-event-is-updated-on-zohocrm-calendar-it-sends-multiple-invites-to-the-participants-how-do-i-stop-that-from-happening
                                                                                                          • Online Assessment or any aptitude test

                                                                                                            This video is really helpful! I have one question — if I share an assessment form link (through email or with the application form on my career page), how does Zoho Recruit evaluate it? Can a candidate use Google or external help while taking the test,
                                                                                                          • How can I filter a field integration?

                                                                                                            Hi,  I have a field integration from CRM "Products" in a form, and I have three product Categories in CRM. I only need to see Products of a category. Thanks for you answers.
                                                                                                          • Email task creator when task is updated/marked complete

                                                                                                            I am looking for a way to notify the creator of a task in zoho todo when - Task is updated Task is closed Comments entered 1 and 2 are critical, and I cannot find a zoho flow to do this. There is no way that as a manager I will know when someone has completed
                                                                                                          • How to move emails to Shared Mailbox?

                                                                                                            Hello, I created a Shred Mailbox instead of using a distribution group. But I cannot move previous emails to certain shared mailbox. Is it possible move some emails from inbox to shared mailbox?
                                                                                                          • How to implement new online payment gateway?

                                                                                                            Hello, Can you tell me how to proceed to implement my local payment gateway? DIBS has an open avaiable API that should be easy to implement into ZOHO BOOKS. http://tech.dibspayment.com/dibs_payment_window
                                                                                                          • Zoho CRM - Portal Users Edit Their Own Account Information

                                                                                                            Hi Community, I'm working on a client portal and it seems like the only I can make the Account record editable to the Contact, is if I add another lookup on the Account to the Contact record. Am I missing something as the account already has a list of
                                                                                                          • I’ve noticed that Zoho Sheet currently doesn’t have a feature similar to the QUERY formula in Google Sheets or Power Query in Microsoft Excel.

                                                                                                            These tools are extremely helpful for: Filtering and extracting data using simple SQL-like queries Combining or transforming data from multiple sheets or tables Creating dynamic reports without using complex formulas Having a Query-like function in Zoho
                                                                                                          • Connecting Zoho Mail with Apollo.io

                                                                                                            Hi, I am trying to connect my Zoho Mail account with my Apollo.io account to start sending cold email for prospecting purposes. I have activated the IMAP setting but I am still unable to connect to the Apollo account. I am using my email credentials but
                                                                                                          • Where does this report come from in the Zoho One ecosystems?

                                                                                                            Is this directly from MA, Analytics or ??? ???
                                                                                                          • Contact's title in "Contact Role Mapping"

                                                                                                            When I'm creating a deal, I'd like to see the contacts title in the listing. Right now, I only see this: How can I get the contact's title in there?
                                                                                                          • Zoho CRM - Client Portal - Hide Notes Related List

                                                                                                            Hi Community, I'm building a customer portal and I can't find a way to hide the notes related list. I don't want the client to see the notes I have about them. Is there a way to do this as it is no bin/trash icon when I hover over.
                                                                                                          • "Pivot Table" Conditional Formatting

                                                                                                            Team, I there a way to use conditional formatting a "Pivot Table"  report? Thanks, Arron Blue Pumpkin Hosting | Solutions Made Simple
                                                                                                          • How many clients can be added to Zoho Practice?

                                                                                                            How many clients can be added to Zoho Practice without having their zoho app?
                                                                                                          • Stage History

                                                                                                            when viewing a ticket , and you look at stage history tab (kanban view) and look at the stage duration column in days, it shows the current stage of the ticket as " current stage ". Should it not rather show the amount of days it has been in that current
                                                                                                          • Send Automated WhatsApp Messages and Leverage the Improved WhatsApp Templates

                                                                                                            Greetings, I hope all of you are doing well. We're excited to announce a major upgrade to Bigin's WhatsApp integration that brings more flexibility, interactivity, and automation to your customer messaging. WhatsApp message automation You can now use
                                                                                                          • Automating Ticket Responses Using Zoho Desk's AI Features

                                                                                                            We’re looking to set up an automation within Zoho Desk that can analyze incoming emails or tickets and automatically respond with relevant knowledge base articles based on the content of the request. Could you please guide us on how to configure this
                                                                                                          • Next Page