How To Fix CNV20551229 - CNVFIELDS: Package=&1, read-only indicator set for &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20551 - message for package 20551 (company code delete)

• Message number: 229

• Message text: CNVFIELDS: Package=&1, read-only indicator set for &2

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20551229 - CNVFIELDS: Package=&1, read-only indicator set for &2 ?

  The SAP error message CNV20551229, which states "CNVFIELDS: Package=&1, read-only indicator set for &2," typically occurs during data migration or conversion processes in SAP systems, particularly when using the SAP S/4HANA Migration Cockpit or similar tools.
  Cause:
  This error indicates that the system is trying to access or modify a field in a package that has been marked as read-only. This can happen for several reasons:
  
  Field Configuration: The field in question may be configured as read-only in the target system or during the migration process.
  Data Model Changes: If there have been changes in the data model (e.g., fields being deprecated or made read-only in the new version of SAP), this can lead to such errors.
  Incorrect Mapping: The mapping of fields from the source to the target system may not be correctly defined, leading to attempts to write to a read-only field.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  Check Field Configuration: Review the configuration of the field in the target system to confirm whether it is indeed set to read-only. If it should be writable, adjust the configuration accordingly.
  Review Migration Mapping: Ensure that the mapping of fields from the source to the target system is correct. If the field is not supposed to be modified, ensure that the migration process does not attempt to write to it.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using to understand the expected behavior of the fields and any constraints that may apply.
  Adjust Migration Logic: If the field is intentionally read-only, you may need to adjust your migration logic to exclude this field from the migration process or handle it differently.
  Check for Updates: Ensure that you are using the latest version of the migration tool, as updates may include fixes for known issues.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to the specific error message or the migration tool you are using. SAP frequently publishes notes that provide solutions or workarounds for common issues.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP Support for assistance.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.