Message type: E = Error
Message class:  FKK_ID_XX_ODN - ODN message 
Message number: 021
Message text: External numbering specified for range &1/&2/&3/&4
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The SAP error message FKK_ID_XX_ODN021 typically occurs in the context of the SAP Convergent Charging or Contract Accounts Receivable and Payable (FI-CA) modules. This error indicates that there is an issue with the external numbering configuration for a specific number range.
Cause: The error message FKK_ID_XX_ODN021 is triggered when the system expects an external number range to be used for a specific document type or transaction, but the configuration is either missing or incorrect. This can happen due to: Incorrect Number Range Configuration: The number range for the document type is not set up correctly in the system. Missing External Number Range: The external number range is not defined for the specified range. Document Type Settings: The document type may not be configured to allow external numbering. Authorization Issues: The user may not have the necessary authorizations to access or use the specified number range.
Solution: To resolve the error, you can follow these steps: Check Number Range Configuration: Go
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