How To Fix VLA021 - Some selected deliveries already belong to a group in WM

SAP Error Message - Details

• Message type: E = Error

• Message class: VLA - General Output Class for Delivery

• Message number: 021

• Message text: Some selected deliveries already belong to a group in WM

What causes this issue?

A delivery may belong to only one group per warehouse number in WM.

How to fix this error?

If you select the field <LS>Exclude existing groups in WM</>, you can
exclude the deliveries that are already assigned to a group in WM
according to the warehouse number given as a selection criterion. Then,
only deliveries that are not yet assigned to a group in WM for the
chosen warehouse number appear on the list.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message VLA021 - Some selected deliveries already belong to a group in WM ?

  The SAP error message VLA021, which states "Some selected deliveries already belong to a group in WM," typically occurs in the context of Warehouse Management (WM) when you are trying to process deliveries that are already assigned to a specific group in the system. This can happen during various operations, such as picking, packing, or transferring deliveries.
  Cause:
  The error is caused by the fact that the selected deliveries are already part of a group in the Warehouse Management system. In WM, deliveries can be grouped for various reasons, such as for picking or shipping. When you attempt to perform an action on these deliveries that would require them to be ungrouped or processed differently, the system prevents this to maintain data integrity.
  Solution:
  To resolve the VLA021 error, you can take the following steps:
  
  
  Check Group Assignment: Verify which group the deliveries belong to. You can do this by checking the delivery documents in the WM system to see their current status and group assignment.
  
  
  Unassign Deliveries: If appropriate, you may need to unassign the deliveries from their current group. This can typically be done through the WM transaction codes (like LT03 for transfer orders) or by using the relevant menu options in the SAP GUI.
  
  
  Process Deliveries Individually: If you are trying to process multiple deliveries at once, consider processing them one at a time. This can help you identify which specific delivery is causing the issue.
  
  
  Consult Documentation: Review the SAP documentation or help files related to WM and delivery processing to understand the implications of grouping and how to manage it effectively.
  
  
  Contact Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting with an SAP expert who can provide more tailored assistance based on your specific configuration and processes.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in WM, such as LT03 (Create Transfer Order), LT12 (Confirm Transfer Order), and others that may be relevant to your operations.
  SAP Notes: Check for any SAP Notes related to error VLA021, as there may be specific patches or updates that address known issues.
  User Roles and Authorizations: Ensure that you have the necessary authorizations to perform the actions you are attempting, as restrictions can sometimes lead to unexpected errors.
  
  By following these steps, you should be able to identify the cause of the VLA021 error and take appropriate action to resolve it.