The latest specifications for the API "eCommerce - Order Transactions - Add Payments"

Question:
It seems that the parameters of the API “eCommerce - Order Transactions - Add Payments” differ between the reference and the actual implementation.

Does anyone have the latest reference or specifications for this API?

Product:
RestAPI

What are you trying to achieve:
The latest specifications for the API “eCommerce - Order Transactions - Add Payments”

What have you already tried:
nothing!

Additional information:
nothing!