How To Fix FDT_EXPRESSIONS355 - Activity node &1 has no predecessor

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 355

• Message text: Activity node &1 has no predecessor

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS355 - Activity node &1 has no predecessor ?

  The SAP error message FDT_EXPRESSIONS355 indicates that there is an issue with the configuration of an activity node in a workflow or process chain. Specifically, the message states that the activity node you are trying to work with does not have a predecessor, which means that it is not properly linked to a previous activity or step in the process.
  Cause:
  
  Missing Predecessor: The activity node is defined without a preceding node, which is required for the workflow to understand the sequence of operations.
  Incorrect Configuration: The workflow or process chain may have been incorrectly configured, leading to a situation where the node is isolated.
  Data Integrity Issues: There may be issues with the data integrity in the workflow definition, such as missing links or references.
  
  Solution:
  
  Check Node Configuration: Review the configuration of the activity node in the workflow. Ensure that it is correctly linked to a predecessor node. You may need to add a predecessor if it is missing.
  Modify Workflow: If the workflow is not designed to have a predecessor for this node, consider modifying the workflow logic to accommodate this requirement.
  Validate Workflow: Use the validation tools available in SAP to check the entire workflow for any inconsistencies or errors. This can help identify other potential issues that may not be immediately apparent.
  Consult Documentation: Refer to SAP documentation or help resources for guidance on configuring activity nodes and workflows correctly.
  Testing: After making changes, test the workflow to ensure that it functions as expected and that the error does not reoccur.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Workflow Documentation: Review the documentation related to the specific workflow or process you are working with to understand the expected structure and requirements.
  Community Forums: Consider reaching out to SAP community forums or support channels for additional insights or similar experiences from other users.
  
  By following these steps, you should be able to resolve the error message FDT_EXPRESSIONS355 and ensure that your workflow or process chain is correctly configured.