How To Fix CNV_00001521 - Field &1 was not added manually; set the 'Exclude' flag instead.

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_00001 - Message class for CWB settings maintenance programs

• Message number: 521

• Message text: Field &1 was not added manually; set the 'Exclude' flag instead.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_00001521 - Field &1 was not added manually; set the 'Exclude' flag instead. ?

  The SAP error message CNV_00001521 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that a specific field (denoted as &1 in the message) was not added manually to the data structure, and instead, the system suggests setting the 'Exclude' flag for that field.
  Cause:
  The error arises when:
  
  A field that is expected to be part of the data migration process is not included in the mapping or transformation rules.
  The field is not relevant for the migration or is not supposed to be populated manually.
  The migration tool detects that the field is not being handled correctly, leading to potential data integrity issues.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Review the Mapping: Check the mapping configuration for the data migration. Ensure that the field in question is correctly mapped if it is supposed to be included.
  
  
  Set the 'Exclude' Flag: If the field is not necessary for the migration, you can set the 'Exclude' flag for that field in the migration tool. This tells the system to ignore this field during the migration process.
  
  
  Consult Documentation: Refer to the SAP documentation or migration guide relevant to the specific migration scenario you are working on. This can provide insights into which fields are mandatory and which can be excluded.
  
  
  Check for Dependencies: Sometimes, fields may have dependencies on other fields. Ensure that all related fields are correctly configured.
  
  
  Testing: After making changes, run a test migration to ensure that the error is resolved and that the data is being migrated as expected.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit and its functionalities, as it provides tools and guidelines for data migration.
  Data Model: Understand the data model of the target system to ensure that you are aware of which fields are required and which can be excluded.
  
  If the issue persists after following these steps, consider reaching out to SAP support or consulting with a professional who specializes in SAP data migration.