Message type: E = Error
Message class:  FKK_ID_AR - ARGENTINA: Legal report message class 
Message number: 066
Message text: Identification type or ID. number is not defined for contract account &.
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The SAP error message FKK_ID_AR066 indicates that there is an issue with the identification type or ID number for a contract account in the SAP system. This error typically arises in the context of contract accounts in the SAP Convergent Charging or Contract Accounts Receivable and Payable (FI-CA) modules.
Cause: The error occurs when the system cannot find a valid identification type or ID number associated with the specified contract account. This can happen due to several reasons: Missing Configuration: The identification type or ID number may not be defined in the system for the specific contract account. Incorrect Data Entry: There may be a typo or incorrect entry in the contract account details. Data Migration Issues: If data was migrated from another system, some identification types or ID numbers may not have been transferred correctly. Inconsistent Master Data: The master data for the contract account may be incomplete or inconsistent.
Solution: To resolve the error, you can
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