SAP Message BBP_ADMIN028 - Application error occurred in R/3 system &1 (SRM outline agreement &2)

Diagnosis In the R/3 backend system &1 an error occurred before thecontract or condition IDOCs were created. System Response No IDOC has been created. The contract has not been created or changedin the backend system. Procedure Note the other error messages for this contract orsystem. Check existing implementations of the BAdI BBP_CTRin the R/3 system.