Hello Evhen,
There could be so many reasons for this issue. To start with, you can check below things -
- Application log of the FPY1 run
- Exception list of the FPY1 run
- Check if any outgoing payment method assigned at credit document or contract account level level
- Check if any payment lock exists at credit document or contract account level
- Check if the payment related configurations are completed or not
Let me know how you go.
Thanks
Bodhisattwa