How To Fix VHUAP226 - Select exactly one header line (sales order, stock tr. order, delivery)

SAP Error Message - Details

• Message type: E = Error

• Message class: VHUAP - Messages for Packing Transaction Applications (FGrp VHUDIAL)

• Message number: 226

• Message text: Select exactly one header line (sales order, stock tr. order, delivery)

What causes this issue?

You are trying to select HUs which do not have a reference and then
create a reference for these HUs for the selected document (request,
order, delivery).

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Select just one header row. For the material for this request item,
order item or delivery item, HUs without a reference are selected. In
the following list display you can then select for which HUs you want to
create a reference. To do this, choose Copy or Transfer HUs. The
corresponding reference is then created for these HUs.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message VHUAP226 - Select exactly one header line (sales order, stock tr. order, delivery) ?

  SAP Error Message:
  
  VHUAP226 – Select exactly one header line (sales order, stock tr. order, delivery)
  
  Cause:
  This error occurs when you are trying to perform an action (such as creating or processing a billing document, delivery, or stock transport order) in the SAP Logistics Execution or Sales and Distribution module, and the system expects you to select exactly one header line (e.g., one sales order, one stock transport order, or one delivery) but you have either:
  
  Selected no line at all, or  
  Selected more than one line simultaneously.
  
  The system requires a single, unambiguous reference to proceed with the transaction.
  
  When does it typically occur?
  
  During billing document creation (VF01, VF04, etc.) when selecting sales orders or deliveries.  
  When processing stock transport orders or deliveries in Logistics Execution.  
  In scenarios where the system expects a unique document reference to continue.
  
  
  Solution:
  
  Select exactly one header line in the list or selection screen before proceeding.  
  If multiple lines are selected, deselect all but one.  
  If no line is selected, select the appropriate single header line that you want to process.  
  Verify that the document you want to process is correctly displayed and selectable.  
  If you are using a custom program or report, ensure the selection logic enforces single selection or handles multiple selections appropriately.
  
  
  Additional Information:
  
  This message is a standard validation to avoid ambiguity in document processing.  
  If you are unsure which line to select, check the document numbers and statuses to identify the correct one.  
  In some cases, the selection screen or list may be filtered incorrectly, causing no lines to appear or multiple lines to be selected by default. Adjust filters accordingly.  
  If this error appears in a custom development or enhancement, review the code to ensure it enforces single selection or handles multiple selections properly.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Message
  VHUAP226 – Select exactly one header line (sales order, stock tr. order, delivery)
  
  
  Cause
  No line or multiple lines selected instead of exactly one header line
  
  
  Solution
  Select exactly one header line before proceeding
  
  
  Module
  SD (Sales and Distribution), LE (Logistics Execution)
  
  
  
  
  If you need further help, please provide the transaction code and the exact step where the error occurs.