When I'm trying to init a payment from within my FB app, I get the error:
API Error Code: 1383003
API Error Description: Account id missing.
Searching for this suggests that I need to link a company to the app. However, I've already done so. This company is in fact already being used for real payments in a different app I manage.
Is there something else that I need to do, or do I need to contact Facebook?