I'm using Affirm API to have monthly payments available on the e-commerce but now I need some help updating the order payment information status after I get the response from Affirm.
I guess I need to create Transactions (authorize, capture..) using the built-in Manual gateway?
Or am I on the wrong track? There's almost no documentation on this matter, especially from a module point of view (not Twig).
I just want to create a transaction for my orders in the backend exclusively (no front-end form).