How To Fix CRM_BRF045 - Tag expression &1 is used by tags, but has multiple results

CRM_BRF045 - Overview

• Message type: E = Error

• Message class: CRM_BRF -

• Message number: 045

• Message text: Tag expression &1 is used by tags, but has multiple results

What causes this issue?

The tag expression &V1& is used in other tag expressions, but has more
than one result. This is not permitted in the BRF architecture and leads
to incorrect results.
Make sure that the tag expression &V1& delivers one result maximum.

System Response

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

How to fix this error?

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 CRM_BRF045 - Tag expression &1 is used by tags, but has multiple results ?

  The SAP error message CRM_BRF045 indicates that there is an issue with a tag expression in the Business Rule Framework (BRF) where the expression is being used by multiple tags but is returning multiple results. This can lead to ambiguity in the rule evaluation process, as the system does not know which result to use.
  
  Cause:
  
  Multiple Results: The tag expression is designed to return a single result, but it is returning multiple results instead. This can happen if the logic defined in the expression is not specific enough or if there are overlapping conditions that lead to multiple valid outcomes.
  Improper Configuration: The configuration of the tags or the expressions may not be set up correctly, leading to conflicts in the evaluation.
  Data Issues: The underlying data being evaluated may have inconsistencies or duplicates that cause the expression to yield multiple results.
  
  
  Solution:
  
  Review the Tag Expression: Check the logic of the tag expression to