How To Fix RSTRAN751 - Field &1 used in rule &2 does not exist in the target

SAP Error Message - Details

• Message type: E = Error

• Message class: RSTRAN - Messages for Transformation

• Message number: 751

• Message text: Field &1 used in rule &2 does not exist in the target

What causes this issue?

Field &V1&, which is used in a rule, no longer exists in the target.
However, it existed when the transformation was created.

System Response

The rule was marked as invalid and was deleted.

How to fix this error?

If you need the rule, insert the missing field in the target before
saving.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSTRAN751 - Field &1 used in rule &2 does not exist in the target ?

  The SAP error message RSTRAN751 indicates that there is a problem with a transformation rule in the context of data transfer, typically in the context of SAP BW (Business Warehouse) or SAP HANA. Specifically, the error states that a field referenced in a transformation rule does not exist in the target structure.
  Cause:
  
  
  Field Mismatch: The field specified in the transformation rule (&1) does not exist in the target data structure (&2). This can happen if:
  
  The target data structure has been changed (e.g., fields added or removed) after the transformation was created.
  The transformation was created using an outdated version of the target structure.
  There is a typo or incorrect field name in the transformation rule.
  
  
  
  Data Source Changes: If the data source or the target InfoObject has been modified (e.g., fields added, renamed, or deleted), it can lead to this error.
  
  
  Incorrect Mapping: The mapping between the source and target fields in the transformation might not be correctly defined.
  
  
  Solution:
  
  
  Check Target Structure: Verify the target structure to ensure that the field referenced in the transformation rule exists. You can do this by:
  
  Navigating to the target InfoObject or DataStore Object (DSO) in the SAP BW modeling tools.
  Checking the list of fields to confirm the existence of the field.
  
  
  
  Update Transformation: If the field does not exist, you may need to:
  
  Modify the transformation to either remove the reference to the non-existent field or replace it with the correct field that exists in the target structure.
  If the target structure has changed, update the transformation accordingly.
  
  
  
  Re-activate Transformation: After making changes, ensure to activate the transformation again to apply the updates.
  
  
  Check for Typos: Double-check for any typos in the field names in the transformation rules.
  
  
  Test the Transformation: After making the necessary changes, test the transformation to ensure that it works correctly without errors.
  
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like RSA1 (Data Warehousing Workbench) to access the modeling tools and check the InfoObjects and transformations.
  Documentation: Refer to SAP Help documentation for detailed information on transformations and data modeling in SAP BW.
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to this error message.
  
  By following these steps, you should be able to resolve the RSTRAN751 error and ensure that your data transformation processes run smoothly.