How To Fix CNV_20000256 - Prefix &1 was selected for number range number &2

CNV_20000256 - Overview

• Message type: E = Error

• Message class: CNV_20000 - Messages for fiscal year change

• Message number: 256

• Message text: Prefix &1 was selected for number range number &2

Self-Explanatory Message

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CNV_20000256 - Details

• The SAP error message CNV_20000256 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that a specific prefix for a number range has been selected, but there may be issues related to the configuration or usage of that number range.
  
  Cause:
  
  Number Range Configuration: The prefix specified for the number range may not be correctly configured in the system. This could mean that the number range is not defined, or the prefix does not match the expected format.
  Data Migration Issues: During data migration, if the source data uses a different prefix or number range than what is configured in the target system, this error can occur.
  Inconsistent Data: The data being migrated may contain inconsistencies or invalid entries that do not align with the defined number range settings.
  
  
  Solution:
  
  
  Check Number Range Configuration:
  
  Go to the transaction code SNRO (Number Range Objects) and