How To Fix CNV_PE570 - Seqnum must not be initial

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE - General messages for posting engine

• Message number: 570

• Message text: Seqnum must not be initial

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_PE570 - Seqnum must not be initial ?

  The SAP error message "CNV_PE570 Seqnum must not be initial" typically occurs in the context of data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that a sequence number (Seqnum) that is expected to have a value is found to be empty or uninitialized.
  Cause:
  
  Missing Sequence Number: The error is triggered when the system expects a sequence number to be provided for a particular record, but it is either missing or set to an initial (empty) value.
  Data Mapping Issues: There may be issues in the mapping of data from the source system to the target system, where the sequence number is not being populated correctly.
  Configuration Errors: Incorrect configuration in the migration settings or templates may lead to the absence of required fields.
  
  Solution:
  
  Check Data Source: Ensure that the source data being migrated contains valid sequence numbers. If the sequence number is supposed to be generated or derived from another field, verify that the logic is correctly implemented.
  Review Mapping Configuration: Go through the mapping configuration in the migration tool to ensure that the sequence number field is correctly mapped and not left blank.
  Data Preparation: If you are using a custom migration program or tool, ensure that the data preparation step includes generating or assigning sequence numbers where necessary.
  Debugging: If you have access to the migration logs or debugging tools, check for any additional error messages or warnings that might provide more context about why the sequence number is missing.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using to understand the requirements for sequence numbers and how they should be handled.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide guidance on data migration issues.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Migration Cockpit: If using the SAP S/4HANA Migration Cockpit, review the official SAP documentation for best practices and troubleshooting tips related to data migration.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.