SAP Message KL002 - A master record for &1/&2 exists only in &3

Diagnosis
You want to use cost center &V1& together with activity type &V2&. Forthis combination, however, only one master data record was created infiscal year &V3&. The master record is defined in CCA during activitytype planning.

Procedure
Create the master data record.
Activity type planning
Or, check your entries.