Message type: E = Error
Message class:  FKK_ID_XX_ODN - ODN message 
Message number: 087
Message text: Chronological numbering per document class must be consistent
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The SAP error message FKK_ID_XX_ODN087 indicates that there is an inconsistency in the chronological numbering for a specific document class in the SAP system. This error typically arises in the context of contract accounts receivable and payable (FI-CA) when the system detects that the numbering sequence for documents is not being followed correctly.
Cause: Inconsistent Number Ranges: The error often occurs when the number ranges defined for a document class are not consistent. For example, if a document is created with a number that falls outside the defined range or if there are gaps in the sequence. Manual Interventions: If manual entries or adjustments have been made to the document numbers, it can lead to inconsistencies.
Configuration Issues: Incorrect configuration in the number range settings for the document class can also lead to this error.
Solution: To resolve the error, you can follow these steps: Check Number Range Configuration: Go to the transaction code SNRO (Number Range Objects). Find
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