Using Contact ID (from CRM) to get Cusotmer ID (from Invoice) isn't working
Am I using the wrong url here?
I tried doing this with the Customer ID replacing contact ID and of course it works fine.... the problem being I have the contact ID and not the customer ID.
I was told I could use the Contact ID to fetch the Customer object with the Invoice API.
What do?
**Edit: I need to run through a lot of contacts so I need to come up with a way to not use the SEARCH method. I'm trying to use the GET method.**