Inconsistent initialization time period for key figure &1

What causes this issue?

There is an inconsistency between the initialization time period of the
key figure in liveCache and in the database.

System Response

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

How to fix this error?

You can either start the consistency check in the repair mode, or
initialize the planning area again to correct the inconsistency.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.