AR/Cash or Service Central payment using API

iMIS Version: 20.2.66.1216

Hi!

I need to create transactions using API that reflects what our customer does using iMIS desktop.
They use AR/Cash and Service Central modules.

Here are steps for each module:

-- AR/Cash --
Enter and edit transaction -> Cash receipts -> New -> Id (select user) -> Show invoice list
Check/CC - NA_VISA (paiment type/account -Cash Table)
Add CC info
Add Payment amount
Save

-- Service Central --
Enter and edit payments -> New -> Id (select user) -> Show invoice list
Add CC info
Payment amount
Select invoices to be paid
Save

Which API requests should I use to perform these processes?

Thanks
Nedis