How To Fix RSTRAN120 - InfoObjects must be assigned to the DataSource fields

SAP Error Message - Details

• Message type: E = Error

• Message class: RSTRAN - Messages for Transformation

• Message number: 120

• Message text: InfoObjects must be assigned to the DataSource fields

What causes this issue?

There are source fields to which no InfoObject was yet assigned.
However, you are using a rule type that require InfoObjects as the
source or you are using a unit or currency conversion type.

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

System Response

How to fix this error?

Fill in field <LS>InfoObject Assignment</> in area <LS>Source Fields</>
for each field that is used as a source for this rule.

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 RSTRAN120 - InfoObjects must be assigned to the DataSource fields ?

  The SAP error message RSTRAN120 indicates that there is a problem with the assignment of InfoObjects to the fields of a DataSource in the context of data extraction or transformation processes in SAP BW (Business Warehouse). This error typically arises when the system expects certain InfoObjects to be mapped to the fields of a DataSource, but they are not properly assigned.
  Cause:
  
  Missing Assignments: The InfoObjects that are supposed to be linked to the DataSource fields are not assigned. This can happen if the DataSource was created or modified without properly linking the InfoObjects.
  Incorrect Configuration: There may be an issue with the configuration of the DataSource itself, such as missing or incorrect field mappings.
  Changes in InfoObjects: If InfoObjects were changed or deleted after the DataSource was created, it could lead to this error.
  Transport Issues: If the DataSource was transported from one system to another, the InfoObjects may not have been transported correctly or may not exist in the target system.
  
  Solution:
  To resolve the RSTRAN120 error, follow these steps:
  
  
  Check DataSource Configuration:
  
  Go to the DataSource in the SAP BW system (transaction code RSA1).
  Navigate to the DataSource and check the field mappings.
  Ensure that all required InfoObjects are assigned to the corresponding fields in the DataSource.
  
  
  
  Assign InfoObjects:
  
  If any InfoObjects are missing, assign them to the appropriate fields in the DataSource.
  You can do this by editing the DataSource and using the "Field Mapping" section to link the InfoObjects.
  
  
  
  Validate InfoObjects:
  
  Ensure that the InfoObjects you are trying to assign are active and correctly defined in the system.
  Check for any inconsistencies or issues with the InfoObjects themselves.
  
  
  
  Transport Check:
  
  If the DataSource was transported, verify that all related InfoObjects were also transported and are available in the target system.
  If necessary, transport the missing InfoObjects.
  
  
  
  Re-activate DataSource:
  
  After making the necessary assignments, re-activate the DataSource to ensure that the changes take effect.
  
  
  
  Test the DataSource:
  
  After making the changes, test the DataSource to ensure that it is functioning correctly and that the error no longer appears.
  
  
  
  Related Information:
  
  Transaction Codes: Use transaction codes like RSA1 (Data Warehousing Workbench) and RSO2 (DataSource Maintenance) to manage DataSources and InfoObjects.
  Documentation: Refer to SAP Help documentation for detailed guidance on DataSource configuration and InfoObject management.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to the RSTRAN120 error.
  
  By following these steps, you should be able to resolve the RSTRAN120 error and ensure that your DataSource is correctly configured with the necessary InfoObjects.