How To Fix WI126 - Enter a key

SAP Error Message - Details

• Message type: E = Error

• Message class: WI - BPT Workflow: Messages from Info System

• Message number: 126

• Message text: Enter a key

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 WI126 - Enter a key ?

  SAP Error Message:
  
  WI126 - Enter a key
  
  Cause:
  The error message WI126 - Enter a key typically occurs in SAP Workflow when a required key field (usually a unique identifier or primary key) is missing or not entered in a workflow step or container element. This key is necessary for the system to identify the specific object instance the workflow is supposed to process.
  For example, if a workflow step expects an object key (like a Purchase Order number, Material number, or any business object key) and it is not provided or passed correctly, SAP will prompt this error.
  
  When does it occur?
  
  When a workflow step is triggered without the required key.
  When the workflow container does not have the necessary key value.
  When the binding of the workflow container element to the object key is missing or incorrect.
  During workflow start or task execution if the key is not supplied.
  
  
  Solution:
  
  
  Check Workflow Container Bindings:
  
  Go to the workflow builder (transaction SWDD).
  Check the container elements of the workflow and ensure that the key fields are correctly defined and bound.
  Make sure the key field is mapped correctly to the object instance.
  
  
  
  Verify Workflow Start Parameters:
  
  If the workflow is started manually or via a program, ensure that the key parameter is passed correctly.
  For example, if starting a workflow for a Purchase Order, the PO number must be passed as the key.
  
  
  
  Check the Object Type and Key:
  
  Confirm that the object type used in the workflow step requires a key and that the key is valid.
  Use transaction SWO1 to check the object type and its key definition.
  
  
  
  Debug the Workflow:
  
  Use transaction SWUS or SWI1 to analyze the workflow log.
  Debug the workflow to see where the key is missing or not passed.
  
  
  
  Correct the Workflow Step or Task:
  
  If the error occurs in a specific step, check the step’s container and ensure the key is correctly assigned.
  Adjust the step or task to ensure the key is provided.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SWDD - Workflow Builder
  SWO1 - Business Object Builder
  SWI1 - Workflow Log
  SWUS - Workflow Analysis Tools
  
  
  
  SAP Notes:
  
  Check SAP Notes related to workflow container binding issues.
  Sometimes patches or updates fix known workflow key handling bugs.
  
  
  
  Documentation:
  
  SAP Help Portal on Workflow container and binding.
  SAP Workflow Administration guides.
  
  
  
  
  Summary:
  WI126 - Enter a key means the workflow expects a key value for an object but it was not provided. To fix it, ensure the workflow container has the key correctly bound and that the workflow start or step execution passes the required key.
  
  If you provide the specific workflow or object type, I can help with more detailed steps!