How To Fix FDT_EXPRESSIONS179 - Node &1 is a leaf node and does not have a result assigned

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_EXPRESSIONS - Formula & Derivation Tool: Expressions

• Message number: 179

• Message text: Node &1 is a leaf node and does not have a result assigned

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 FDT_EXPRESSIONS179 - Node &1 is a leaf node and does not have a result assigned ?

  The SAP error message FDT_EXPRESSIONS179 indicates that a node in a decision table or expression is a "leaf node" but does not have a result assigned to it. This typically occurs in the context of SAP's Flexible Decision Table (FDT) framework, which is used for defining business rules and decision logic.
  Cause:
  
  Leaf Node Definition: A leaf node in a decision table is a terminal node that does not have any child nodes. It is expected to have a result or output assigned to it.
  Missing Result Assignment: The error arises when a leaf node is defined but lacks an associated result. This means that when the decision logic reaches this node, it does not know what output to provide.
  Incorrect Configuration: There may be a misconfiguration in the decision table where the leaf node was created without properly assigning a result.
  
  Solution:
  
  Check the Decision Table: Open the decision table or expression where the error is occurring. Identify the leaf node mentioned in the error message.
  Assign a Result: Ensure that the leaf node has a result assigned to it. This can typically be done by:
  
  Editing the node properties and specifying the output value or result.
  Ensuring that the logic leading to this node is correctly defined.
  
  
  Validate the Configuration: After making changes, validate the entire decision table to ensure there are no other errors or misconfigurations.
  Test the Logic: Once the result is assigned, test the decision table to confirm that it behaves as expected and that the error no longer occurs.
  
  Related Information:
  
  Documentation: Refer to SAP documentation on Flexible Decision Tables for detailed guidance on how to configure decision tables and expressions.
  Debugging: If the issue persists, consider using debugging tools within SAP to trace the execution path and identify where the logic may be failing.
  Community Forums: Check SAP community forums or support channels for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to resolve the error message FDT_EXPRESSIONS179 and ensure that your decision table functions correctly.