SAP Message 6A717 - Posting key for breakdown postings have not been defined

Diagnosis You have not defined the posting key for breakdown postings inCustomizing. Procedure Define the posting key for the transaction IRE "Operating costssettlement" under Accounts, posting keyfor breakdown and revenue postings. Execute "Posting key forbreakdown postings" here. If necessary, you can use the standard Customizing settings to helpyou.