Message type: E = Error
Message class: 88 - REA Processing
Message number: 266
Message text: Error &1 during external number check; key must be corrected
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88266
- Error &1 during external number check; key must be corrected ?The SAP error message 88266, which states "Error &1 during external number check; key must be corrected," typically occurs when there is an issue with the external number assignment for a document or object in SAP. This error is often related to the configuration of number ranges or the way external numbers are being handled in the system.
Cause: Invalid Number Range: The external number being used does not fall within the defined number range for the object type. Number Range Configuration: The number range may not be properly configured or may have been changed, leading to inconsistencies. Duplicate Numbers: The external number being used may already exist in the system, causing a conflict. Authorization Issues: The user may not have the necessary authorizations to use the specified number range.
Solution: Check Number Range Configuration: Go to the transaction code SNRO (Number Range Objects) and check the configuration for the relevant number range object. Ensure that the number range
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