Can i cancel Payment Acknowledgement?

Summary:

Our client wants approved PPRs to be completed.

So far this was the process while submitting PPRs: Installments were selected, Payment options been chose and approval flow started.

Once all approvers confirmed and approved, Payment file was created and the process ended.

Now suddenly the acknowledgment flow started to pop up.

How can we cancel it? where is the setup of it? How come it never showed up before?

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