Solution: Associate Products to CRM Contacts in Zoho Desk:

1. Create a Workflow Rule in Zoho CRM that triggers whenever a product is associated with a contact or account.
2. Add a Custom Function as the workflow action.
3. In the custom function,
   • Identify the corresponding synced Contact and Product records in Zoho Desk using their unique identifiers (for example, email address or product name).
   • Invoke the Zoho Desk “Association” API to create the relationship between the contact/account and the product.

1. DESK_ORG_ID="769696778";
2. associatedProducts = zoho.crm.getRelatedRecords("Products","Contacts",contactId);
3. searchValue = {"email":CRM_CONTACT_EMAIL};
4. // info searchValue;
5. 
   
6. deskContacts = zoho.desk.searchRecords(DESK_ORG_ID,"contacts",searchValue,0,10);
7. //info deskContacts;
8. 
   
9. matchingContactId = "";
10. for each  contact in deskContacts.get("data")
11. { if(ifnull(contact.get("zohoCRMContact").get("id"),"") == contactId)
12. {
13. matchingContactId = contact.getJSON("id");
14. break; 
15. }
16. }
17. info matchingContactId;
18. 
    
19. if(matchingContactId.isNull() == false)
20. {
21. for each  product in associatedProducts
22. {
23. productName = product.get("Product_Name");
24. searchValue = {"productName":productName};
25. matchingProducts= zoho.desk.searchRecords(DESK_ORG_ID,"products",searchValue,0,5,"desk");
26. productId = matchingProducts.getJSON("data").get(0).get("id");
27. 
    
28. mp = Map();
29. mp.put("ids",{matchingContactId});
30. mp.put("associate",true);
31. 
    
32. associateContactWithTheProduct = invokeurl
33. [
34. url :"https://desk.zoho.com/api/v1/products/" + productId + "/associateContacts"
35. type :POST
36. parameters:mp.toString()
37. connection:"desk
38. ];
39. info associateContactWithTheProduct;
40. }
41. }

Explanation of the script:

1. Fetch related products – Retrieves the list of products associated with a specific contact.
2. Identify the contact – Locates the matching contact in Zoho Desk using a unique identifier (such as the email address).
3. Associate products – Iterates through all the fetched products and uses the "Associate contacts with products" API to link each product with the identified contact in Zoho Desk.

Screenshot for reference:

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Notes: Refer to the following Guide - Article to learn the best practices for Optimizing the code and various ways to deploy Custom Function across Zoho CRM.