Custom selections deleted because fields not active in ledger

What causes this issue?

Either you have entered custom selections or you have switched between
ledgers and had already entered custom selections for the previous
ledger.

System Response

From the custom selections, the program deletes any entries for fields
that are not active in the ledger currently selected.

How to fix this error?

If necessary, adjust the custom selections for the currently selected
ledger.

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.