How To Fix CNV_20700088 - Duplicate entries: Old value : &1, New value: &2

CNV_20700088 - Overview

• Message type: E = Error

• Message class: CNV_20700 - Material number conversion

• Message number: 088

• Message text: Duplicate entries: Old value : &1, New value: &2

Self-Explanatory Message

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CNV_20700088 - Details

• The SAP error message CNV_20700088, which indicates "Duplicate entries: Old value: &1, New value: &2," typically arises during data migration or conversion processes, particularly when using SAP's data migration tools or during system upgrades. This error suggests that there are duplicate entries in the data being processed, which violates the uniqueness constraints expected by the target system or data structure.
  
  Cause:
  
  Duplicate Data: The primary cause of this error is the presence of duplicate records in the source data that are being migrated or converted. This can happen if the same record exists multiple times with the same key fields.
  Data Mapping Issues: If the mapping of fields from the source to the target system is not correctly defined, it may lead to conflicts where two different records are trying to map to the same target key.
  Configuration Errors: Incorrect configuration in the data migration tool or settings that do not account for existing