How To Fix WS766 - No reference information exists

SAP Error Message - Details

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 766

• Message text: No reference information exists

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WS766 - No reference information exists ?

  Certainly! Here's a detailed explanation for the SAP error message WS766 - No reference information exists:
  
  SAP Error Message: WS766 - No reference information exists
  Cause:
  The error WS766 typically occurs in SAP Workflow when the system tries to access or process a workflow container element or reference that does not exist or has not been properly initialized. In other words, the workflow is expecting some reference information (such as an object, task, or container element) that is missing or has not been passed correctly.
  Common scenarios include:
  
  The workflow container element that is supposed to hold reference data is empty or not filled.
  The workflow step is trying to access an object or reference that was never created or assigned.
  Incorrect or missing binding between workflow container elements and the task or event parameters.
  The referenced object instance does not exist in the database or has been deleted.
  
  
  Solution:
  To resolve the WS766 error, you can follow these steps:
  
  
  Check Workflow Container Bindings:
  
  Go to the workflow builder (transaction SWDD).
  Verify that all container elements are correctly bound to the task or event parameters.
  Ensure that the container element expected by the workflow step is properly filled before the step is executed.
  
  
  
  Verify Object References:
  
  Confirm that the object instance referenced in the workflow container actually exists.
  If the workflow expects an object key (e.g., a document number, purchase order, etc.), make sure it is correctly passed and valid.
  
  
  
  Debug the Workflow:
  
  Use transaction SWI1 or SWI2_FREQ to find the workflow instance.
  Use SWUS or SWI5 to analyze the workflow log and identify where the reference is missing.
  Debug the workflow step to check the container contents at runtime.
  
  
  
  Check Event and Task Definitions:
  
  Ensure that the event triggering the workflow provides the necessary reference data.
  Check the task definition to confirm that the container elements are correctly defined and mapped.
  
  
  
  Recreate or Adjust Workflow Steps:
  
  If the workflow step is custom, review the code or method that fills the container.
  Adjust the workflow logic to ensure the reference information is always available before the step executes.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SWDD - Workflow Builder
  SWI1 - Workflow Log
  SWI2_FREQ - Workflow Instances
  SWUS - Workflow Analysis
  SWI5 - Workflow Log Display
  
  
  
  SAP Notes:
  
  Check SAP Notes related to workflow container issues or WS766 error for your specific SAP version.
  
  
  
  Common Objects:
  
  Workflow container elements often hold references to business objects like Purchase Orders (BUS2012), Sales Orders (BUS2032), etc.
  Missing or incorrect object keys can cause this error.
  
  
  
  Best Practices:
  
  Always initialize and check container elements before workflow steps.
  Use error handling in workflows to catch missing references and provide meaningful messages.
  Maintain consistent object references throughout the workflow.
  
  
  
  
  If you provide more context (e.g., which workflow or business process you are working with), I can help tailor the solution further.