I have a Flow that gets triggered every time a deal is updated. When the deal goes to Zoho Flow, I want to use the fields from the deal to create a document using a merge mail template. I already have a Merge Template. I just need to have a custom function that I can use in Zoho Flow to tell the merge template to create a document from that template,  pulling in the merge tags from the deal per the template specifications. I then want the custom function to email the new merged document to an email from the deal. I know that this is possible but I need help with the custom function code. Can you please help?

Thanks in advance for helping!