How To Fix CNV20200181 - FIAA-BELNR number range is external => number level not updated!

CNV20200181 - Overview

• Message type: E = Error

• Message class: CNV20200 - Messages for development class CNV_20200

• Message number: 181

• Message text: FIAA-BELNR number range is external => number level not updated!

Self-Explanatory Message

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CNV20200181 - Details

• The SAP error message CNV20200181 with the description "FIAA-BELNR number range is external => number level not updated!" typically occurs during data migration or conversion processes, particularly when working with the Financial Accounting (FI) and Asset Accounting (AA) modules. This error indicates that the system is trying to update a number range that is defined as external, which means that the number range is managed outside of the SAP system (e.g., manually or through an external system).
  
  Cause:
  
  External Number Range: The number range for the document number (BELNR) in the Asset Accounting (FIAA) is set to external. This means that the system expects the document numbers to be provided externally rather than generated internally by SAP.
  Data Migration Issues: During data migration, if the system attempts to generate or update a document number that is supposed to be external, it will trigger this error.
  Configuration Settings: The configuration settings for number ranges in