BRF254 - No uniform result typing is possible

SAP Error Message - Details

• Message type: E = Error

• Message class: BRF - Messages for Business Rule Framework

• Message number: 254

• Message text: No uniform result typing is possible

What causes this issue?

The return values of the WHEN conditions of the CASE expressions differ
in length.

System Response

The system is unable to determine any uniform result typing for the CASE
expression.

How to fix this error?

This message can have one of the following meanings:
If it is necessary to type the CASE expression completely, you must
ensure that all return values of the WHEN conditions have the same
length, output length and number of decimal places.
If it is not necessary to type the CASE expression completely, you can
ignore the message.

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.

AnswerBot

• What is the cause and solution for SAP error message BRF254 - No uniform result typing is possible ?

  The SAP error message BRF254 ("No uniform result typing is possible") typically occurs in the context of Business Rule Framework (BRF+) when there is an inconsistency in the data types of the results being returned by a rule or decision table. This can happen when the rules are expected to return a single type of result, but the actual results vary in type.
  Cause:
  
  Inconsistent Data Types: The rules or expressions defined in the BRF+ application may return different data types (e.g., a mix of strings, integers, or other types) which cannot be unified into a single type.
  Decision Table Configuration: If a decision table is configured to return different types based on the conditions, it can lead to this error.
  Function Return Types: If a function is defined to return a specific type but the logic within the function leads to different types being returned, this can trigger the error.
  
  Solution:
  
  Check Data Types: Review the rules, expressions, and decision tables to ensure that all possible return values are of the same data type. If necessary, modify the rules to ensure consistency.
  Modify Decision Tables: If using decision tables, ensure that all outcomes return the same type. You may need to adjust the conditions or the return values to achieve this.
  Use Type Casting: If it is necessary to return different types, consider using type casting to convert all return values to a common type.
  Review Function Logic: If a function is involved, ensure that all branches of the function return the same type. This may involve adding additional checks or modifying the logic to ensure uniformity.
  Testing: After making changes, test the rules thoroughly to ensure that the error does not occur again and that the expected results are returned.
  
  Related Information:
  
  BRF+ Documentation: Refer to the official SAP documentation for BRF+ for detailed information on data types and how to manage them.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  By ensuring that all return types are consistent and properly defined, you should be able to resolve the BRF254 error.