Under the ‘Logic’ tab, click to “+ Custom Function”
The code has to end with some sort of ‘return’ statement at the end. But, in between, dream up any action you want!
This is a great spot to remind you to create the right connections for your API calls. You will just need one for Zoho Books with scopes to allow you to retrieve Customer records and create Invoices.
If you’d like to skip to the end, view the full code here.