RIB budget document with amounts in more than one period

What causes this issue?

You have activated the
<DS:DE.FMRB_PERIOD_CONTROL>period control</> for Revenues Increasing
the Budget (RIB) in FM area &V1& and you want to save a RIB budget
document with amounts in more than one period.

System Response

The system does not allow you to save the budget document. With active
period control, each RIB budget document must increase the budget for a
single period.

How to fix this error?

Change the RIB budget document.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.