How To Fix RSAR251 - Saving not possible, error in the transfer rules (change).

SAP Error Message - Details

• Message type: E = Error

• Message class: RSAR - Data Transfer and Metadata Maintenance

• Message number: 251

• Message text: Saving not possible, error in the transfer rules (change).

What causes this issue?

The total status of your transfer rules is &. Therefore, the transfer
rules cannot be consistently saved.
Possible causes:
There is no single InfoObject of the communication structure, that has
a transfer rule. You will see the following icons:
@01@
There are incorrect transfer rules. Following icon appears:
@03@

System Response

Back-up was not carried out.

How to fix this error?

Remove the error mentioned above.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSAR251 - Saving not possible, error in the transfer rules (change). ?

  The SAP error message RSAR251, which states "Saving not possible, error in the transfer rules (change)," typically occurs in the context of data transfer processes, particularly when working with SAP BW (Business Warehouse) or SAP BI (Business Intelligence). This error indicates that there is an issue with the transfer rules that prevent the saving of changes.
  Causes:
  
  Incorrect Transfer Rules: The transfer rules may have been incorrectly defined or modified, leading to inconsistencies.
  Data Source Issues: The data source from which data is being extracted may have issues, such as missing fields or incorrect mappings.
  Inconsistent Data Types: There may be a mismatch in data types between the source and target fields.
  Missing or Inactive InfoObjects: The InfoObjects used in the transfer rules may be missing or inactive.
  Authorization Issues: The user may not have the necessary authorizations to save changes to the transfer rules.
  
  Solutions:
  
  Check Transfer Rules: Review the transfer rules for any inconsistencies or errors. Ensure that all mappings are correct and that the fields are properly defined.
  Validate Data Source: Ensure that the data source is correctly configured and that all required fields are present and correctly mapped.
  Data Type Consistency: Verify that the data types of the source and target fields match. If there are discrepancies, adjust the transfer rules accordingly.
  Check InfoObjects: Ensure that all InfoObjects used in the transfer rules are active and correctly defined in the system.
  Authorization Check: Verify that the user has the necessary authorizations to make changes to the transfer rules. If not, contact your system administrator to obtain the required permissions.
  Transport Requests: If changes were made in a development environment, ensure that they have been properly transported to the production environment.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like RSA1 (Data Warehousing Workbench) to access and manage transfer rules.
  Logs and Traces: Check the logs and traces for more detailed error messages that can provide additional context about the issue.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to RSAR251.
  Documentation: Refer to SAP documentation for best practices on defining and managing transfer rules.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis or BW team for further investigation.