How To Fix RSDME021 - Input field mapping refers to not existing data field &1

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDME -

• Message number: 021

• Message text: Input field mapping refers to not existing data field &1

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.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDME021 - Input field mapping refers to not existing data field &1 ?

  The SAP error message RSDME021 indicates that there is an issue with input field mapping in a data source or transformation. Specifically, it means that the mapping refers to a data field that does not exist in the specified context. This can occur in various scenarios, such as when working with Data Warehousing, Business Intelligence, or when configuring data sources in SAP BW (Business Warehouse).
  Cause:
  
  Field Deletion: The data field that is being referenced in the mapping has been deleted or renamed in the source system or data model.
  Incorrect Mapping: The mapping configuration may have been set up incorrectly, pointing to a field that is not part of the data structure.
  Data Source Changes: Changes in the underlying data source (like a change in the database schema) that are not reflected in the BW data source.
  Transport Issues: If the data source or transformation was transported from one system to another, there may be inconsistencies in the field definitions.
  
  Solution:
  
  Check Field Existence: Verify that the field referenced in the error message actually exists in the data source or transformation. You can do this by checking the data source definition in the SAP BW system.
  Update Mapping: If the field has been renamed or deleted, update the mapping to point to the correct field or remove the reference to the non-existing field.
  Recreate Data Source: If the data source has been significantly altered, consider recreating it to ensure that all mappings are correct and up to date.
  Transport Consistency: If the issue arose after a transport, ensure that all relevant objects were transported correctly and that the target system is consistent with the source system.
  Check for Changes in Source System: If the data source is connected to an external system, check for any changes in that system that might have affected the data structure.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like RSA1 (Data Warehousing Workbench) to access the data source and transformation settings.
  Documentation: Refer to SAP documentation for detailed information on data source and transformation configuration.
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message RSDME021.
  Debugging: If necessary, you can debug the data load process to identify where the mapping is failing.
  
  By following these steps, you should be able to resolve the RSDME021 error and ensure that your data mappings are correctly configured.