How To Fix FDT_EXPRESSIONS353 - Multiple or no successors (&1) are not allowed for start node &2

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 353

• Message text: Multiple or no successors (&1) are not allowed for start node &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS353 - Multiple or no successors (&1) are not allowed for start node &2 ?

  The SAP error message FDT_EXPRESSIONS353 indicates that there is an issue with the flow of expressions in a decision table or expression-based logic within the SAP system. Specifically, it points out that the start node of the expression has either multiple successors or no successors, which is not allowed.
  Cause:
  
  
  Multiple Successors: This occurs when the start node in the expression has more than one outgoing path or successor. In a decision table or flow, each node should ideally lead to a single next step to maintain clarity and avoid ambiguity in decision-making.
  
  
  No Successors: This happens when the start node does not lead to any subsequent nodes. This can occur if the flow is incorrectly defined or if there are missing connections in the logic.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review the Expression Logic:
  
  Open the expression or decision table where the error is occurring.
  Check the start node and examine its connections to ensure that it has exactly one successor.
  
  
  
  Modify the Flow:
  
  If there are multiple successors, you will need to consolidate the logic so that the start node leads to only one successor. This may involve restructuring the decision-making process or combining conditions.
  If there are no successors, ensure that the start node is properly connected to the next logical step in the flow.
  
  
  
  Validate the Expression:
  
  After making the necessary adjustments, validate the expression to ensure that it complies with the required structure and logic.
  
  
  
  Test the Changes:
  
  Once the modifications are made, test the expression to confirm that it functions as expected without triggering the error message.
  
  
  
  Related Information:
  
  Documentation: Refer to SAP documentation on decision tables and expressions for best practices on structuring your logic.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  Debugging Tools: Utilize SAP debugging tools to trace the flow of logic and identify where the issue may be occurring.
  
  By following these steps, you should be able to resolve the FDT_EXPRESSIONS353 error and ensure that your expression logic is correctly defined.