How To Fix FDT_EXPRESSIONS390 - Nodes of type &1 must not have gateway conditions (node &2)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 390

• Message text: Nodes of type &1 must not have gateway conditions (node &2)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS390 - Nodes of type &1 must not have gateway conditions (node &2) ?

  The SAP error message FDT_EXPRESSIONS390 indicates that there is an issue with the configuration of a decision node in a decision table or expression in the SAP system. Specifically, it states that nodes of a certain type (denoted as &1) must not have gateway conditions (node &2). This typically occurs in the context of using the Flexible Decision Table (FDT) framework in SAP.
  Cause:
  
  Incorrect Node Configuration: The error arises when a node that is not supposed to have gateway conditions is incorrectly configured to include them. This can happen if the logic defined in the decision table or expression is not aligned with the expected structure.
  Misunderstanding of Node Types: Users may not fully understand the types of nodes and their intended use, leading to the inclusion of gateway conditions where they are not allowed.
  
  Solution:
  
  Review Node Types: Check the configuration of the nodes in your decision table or expression. Ensure that the node types are correctly defined and that gateway conditions are only applied to nodes that support them.
  Remove Gateway Conditions: If a node of type &1 is incorrectly configured with gateway conditions, remove those conditions. This may involve editing the decision table or expression to ensure compliance with the expected structure.
  Consult Documentation: Refer to the SAP documentation for the Flexible Decision Table framework to understand the rules and limitations regarding node types and their configurations.
  Testing: After making changes, test the decision table or expression to ensure that it functions as expected without triggering the error.
  
  Related Information:
  
  FDT Framework: The Flexible Decision Table framework allows users to create complex decision logic in a more visual and manageable way. Understanding how to properly configure nodes and their relationships is crucial.
  Node Types: Familiarize yourself with the different types of nodes available in the FDT framework and their specific requirements regarding conditions and logic.
  SAP Notes and Community: Check SAP Notes for any known issues or patches related to this error. Additionally, the SAP Community forums can be a valuable resource for troubleshooting and finding solutions shared by other users.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance.