How To Fix CNV_20700041 - All source material numbers exist in table MARA

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20700 - Material number conversion

• Message number: 041

• Message text: All source material numbers exist in table MARA

Self-Explanatory Message

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• What is the cause and solution for SAP error message CNV_20700041 - All source material numbers exist in table MARA ?

  The SAP error message CNV_20700041 indicates that all source material numbers exist in the MARA table, which is the table for general material data in SAP. This error typically arises during data migration or conversion processes, particularly when using SAP's Data Migration tools or during the execution of a conversion program.
  Cause:
  
  
  Data Duplication: The error suggests that the material numbers you are trying to migrate or convert already exist in the MARA table. This could be due to:
  
  Duplicate entries in the source data.
  Attempting to import materials that have already been created in the target system.
  
  
  
  Incorrect Mapping: If the mapping of source data to target data is not set up correctly, it may lead to conflicts where existing material numbers are being referenced.
  
  
  Data Integrity Issues: There may be issues with the integrity of the data being migrated, such as missing or incorrect identifiers.
  
  
  Solution:
  
  
  Check for Duplicates: 
  
  Review the source data for duplicate material numbers. Ensure that each material number is unique before attempting the migration.
  Use transaction codes like SE16 or SE11 to query the MARA table and check for existing material numbers.
  
  
  
  Adjust Migration Logic:
  
  If the intention is to update existing materials, ensure that the migration logic is set to update rather than create new entries.
  Modify the mapping or transformation rules in the migration tool to handle existing records appropriately.
  
  
  
  Data Cleansing:
  
  Cleanse the source data to remove or consolidate duplicates before migration.
  Ensure that the data being migrated is accurate and complete.
  
  
  
  Use a Different Material Number:
  
  If the material numbers in the source data are not critical, consider using a different set of material numbers for the migration.
  
  
  
  Consult Documentation:
  
  Review the documentation for the specific migration tool or program you are using to understand how it handles existing records.
  
  
  
  Related Information:
  
  MARA Table: This table contains the general data for materials in SAP. Each material has a unique material number, and it is crucial for inventory management, procurement, and production processes.
  Data Migration Tools: SAP provides various tools for data migration, such as the SAP S/4HANA Migration Cockpit, LSMW (Legacy System Migration Workbench), and others. Each tool has its own set of rules and configurations for handling data.
  Error Logs: Check the logs generated during the migration process for additional details on the error. This can provide insights into specific records causing the issue.
  
  By following these steps, you should be able to resolve the error CNV_20700041 and successfully complete your data migration or conversion process.