Message type: E = Error
Message class:  FIRU_CNT - Contract Accounting 
Message number: 004
Message text: Entered Customer does not extist
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The SAP error message FIRU_CNT004, which states "Entered Customer does not exist," typically occurs in the context of financial transactions, particularly in accounts receivable or customer-related processes. This error indicates that the system cannot find the customer record associated with the transaction you are trying to process. Causes: Incorrect Customer Number: The customer number entered may be incorrect or mistyped. Customer Not Created: The customer may not have been created in the system yet. Customer Deactivation: The customer record may have been deactivated or marked for deletion. Data Synchronization Issues: If your SAP system is integrated with other systems, there may be synchronization issues leading to missing customer data. Authorization Issues: The user may not have the necessary permissions to view or access the customer record. Solutions: Verify Customer Number: Double-check the customer number you entered for any typos or errors. Check Customer Master Data: Use transaction codes like XD03 (Display Customer) or FD03 (Display Customer - Financial) to
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