How To Fix BRF519 - Expressions of the node do not all deliver the same result type

SAP Error Message - Details

• Message type: E = Error

• Message class: BRF - Messages for Business Rule Framework

• Message number: 519

• Message text: Expressions of the node do not all deliver the same result type

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message BRF519 - Expressions of the node do not all deliver the same result type ?

  The SAP error message BRF519 indicates that there is a mismatch in the result types of expressions within a decision node in the Business Rule Framework (BRF+). This typically occurs when you have multiple expressions or rules that are expected to return the same type of result, but they are returning different types.
  Cause:
  
  Inconsistent Result Types: The expressions or rules defined in the decision node are returning different data types (e.g., some return strings, others return numbers).
  Incorrect Configuration: The configuration of the decision node may not be set up correctly, leading to type mismatches.
  Data Type Changes: If the underlying data types of the fields or variables used in the expressions have changed, this can lead to inconsistencies.
  
  Solution:
  
  
  Check Expressions: Review all expressions within the decision node to ensure they all return the same data type. You can do this by:
  
  Opening each expression and checking the return type.
  Ensuring that all expressions are designed to return the same type (e.g., all should return strings or all should return numbers).
  
  
  
  Modify Expressions: If you find that some expressions return different types, you may need to:
  
  Convert the return types to a common type using appropriate conversion functions (e.g., converting numbers to strings).
  Adjust the logic of the expressions to ensure they align in terms of return type.
  
  
  
  Use a Common Data Type: If possible, define a common data type for the decision node that all expressions can conform to.
  
  
  Testing: After making changes, test the decision node to ensure that it now processes without errors.
  
  
  Related Information:
  
  BRF+ Documentation: Refer to the official SAP documentation for BRF+ for detailed information on data types and expressions.
  Debugging Tools: Use the debugging tools available in BRF+ to trace the execution of rules and identify where the type mismatch occurs.
  Community Forums: Check SAP community forums or SAP Notes for similar issues and solutions shared by other users.
  
  By ensuring that all expressions within a decision node return the same result type, you can resolve the BRF519 error and ensure smooth operation of your business rules.