Is it possible to automatically update the amount to a potential in Zoho CRM, once the status of the invoice associated to it is changed to paid in Zoho Inventory?

Yes, this can be achieved, by using webhooks and workflow rules. Let us zip through the process:

Go to Settings -> Automation -> Webhooks. Now create a new webhook with the following parameters:

• Name: updateCRM
• Module: Invoice
• URL to notify: https://crm.zoho.com/crm/private/xml/Potentials/updateRecords
• Method: POST
• Add the required Parameters.
• Entity parameters: Check the box that says Append Selected Parameters and conditions should be Parameter Name: id = Invoice -> Parameter Value: ZCRM Potential ID
• Next, check the box that says Add User defined Parameters, specify Parameter Name as xmlData, type in the code and insert the placeholder for Invoice total (${INVOICE.INVOICE_TOTAL}) as shown in the image below.