How To Fix T4159 - Posted flows after rollover date already exist

SAP Error Message - Details

• Message type: E = Error

• Message class: T4 - Time deposit processing

• Message number: 159

• Message text: Posted flows after rollover date already exist

What causes this issue?

There are already posted flows after the desired rollover date &v1&.
The rollover date is within the calculation period of a posted flow.
A rollover within the period is not permitted because this would
change the the flow.

How to fix this error?

Please select a later rollover date or reverse the postings for the
corresponding flows.

Error message extract from SAP system. Copyright SAP SE.