More than 50 accounts are contained in another payment proposal

What causes this issue?

The payment proposal overlaps with another proposal for more than 50
accounts.

System Response

The proposal run is terminated.

How to fix this error?

Either wait until the payments have been carried out in the other
payment proposal(s), or narrow down the accounts to be processed for
your proposal so that not more than 50 overlaps exist.

Error message extract from SAP system. Copyright SAP SE.