Please convert standard factor data first

What causes this issue?

The last system update contained new CO database tables for standard
factor costing. To avoid inconsistencies, the existing data must first
be converted. Only then can you create new data.

System Response

The desired transaction is currently not possible.

How to fix this error?

Please notify your systems administrator.
Check if database table CKBS has been activated. If yes,
either start the conversion of standard factors again (program
RKKCUM07)
or wait until the conversion is completed.

Error message extract from SAP system. Copyright SAP SE.