How To Fix CNV_DMC_WDA055 - Tab &1, field &2, line &3 is empty; enter value for the mandatory field

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_WDA - Messages used in WDA UI

• Message number: 055

• Message text: Tab &1, field &2, line &3 is empty; enter value for the mandatory field

What causes this issue?

Note that if the Microsoft Excel XML file contains empty lines, then the
line number stated in this message may not be correct. If the XML file
contains empty lines, you will need to remove the empty lines so that
the line number stated in this message is the correct one.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_WDA055 - Tab &1, field &2, line &3 is empty; enter value for the mandatory field ?

  The SAP error message CNV_DMC_WDA055 indicates that a mandatory field in a specific table is empty during a data migration or conversion process. This error typically arises in the context of using the SAP Data Migration Cockpit (DMC) or during data transfer processes where certain fields are required to have values.
  Cause:
  
  Mandatory Field Requirement: The field specified in the error message is marked as mandatory in the data model, meaning it must contain a value for the process to proceed.
  Data Preparation Issues: The data being uploaded or migrated may not have been properly prepared, leading to missing values in required fields.
  Mapping Errors: There may be issues with the mapping of source data to the target fields, resulting in empty values for mandatory fields.
  Incorrect Configuration: The configuration of the migration project may not align with the data structure, leading to discrepancies.
  
  Solution:
  
  Identify the Field: Check the error message for the specific table name (&1), field name (&2), and line number (&3) to identify which mandatory field is empty.
  Review Data Source: Go back to the source data and ensure that all mandatory fields are populated with valid values. If the data is coming from a file, check the file for completeness.
  Update Data: If the mandatory field is empty, update the data source to include the required value. This may involve editing the source file or database.
  Check Mapping: Review the mapping configuration in the migration cockpit to ensure that the source data is correctly mapped to the target fields.
  Re-run the Migration: After making the necessary corrections, re-run the migration process to see if the error persists.
  Consult Documentation: Refer to SAP documentation or guides related to the specific migration process you are using for additional insights and best practices.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Data Migration Cockpit (DMC): Familiarize yourself with the DMC and its functionalities, as it provides tools for data mapping, validation, and error handling.
  Field Definitions: Review the definitions of the fields in the target table to understand their requirements and constraints.
  Testing: Before performing large-scale migrations, conduct tests with smaller datasets to identify potential issues early in the process.
  
  By addressing the root cause of the empty mandatory field and ensuring that all required data is present, you should be able to resolve the CNV_DMC_WDA055 error and successfully complete your data migration.