SAP Note 28221 - ABAP/4 runtime error RAISE_EXCEPTION in SAPLKALP

Symptom:

When you post interest payments to a project, a termination occurs through ABAP/4 runtime error RAISE_EXCEPTION 'ERROR_IN_COEP' in function module K_COEP_COMPLETE, program SAPLKALP

Cause and prerequisites

Business transaction 'KZRI' for posting directly from FI into CO.

Solution
Program error SAPLKALP, corrected in Release 3.0B. You can make the following advance correction:

Additional key words

Update termination