How To Fix RSTRAN750 - Field &1 used in rule &2 does not exist in the source

RSTRAN750 - Overview

• Message type: E = Error

• Message class: RSTRAN - Messages for Transformation

• Message number: 750

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

What causes this issue?

Field &V1&, which is used in a rule, no longer exists in the source.
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 source 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.

RSTRAN750 - Details

• The SAP error message RSTRAN750 indicates that there is a problem with a transformation rule in the SAP BW (Business Warehouse) system. Specifically, it means that a field referenced in a transformation rule does not exist in the source data structure. This can occur during data extraction or transformation processes when the system tries to map fields from the source to the target but cannot find the specified field.
  
  Cause:
  
  Field Name Mismatch: The field name used in the transformation rule may have been changed or deleted in the source data structure (e.g., InfoSource, DataSource, or InfoObject).
  Incorrect Mapping: The transformation may be incorrectly configured, pointing to a field that does not exist in the source.
  DataSource Changes: If the DataSource has been modified (e.g., fields added or removed), the transformation rules may need to be updated accordingly.
  Transport Issues: If the transformation was transported from one system to another, there may be inconsistencies in