How To Fix WM126 - Manual module selection and checking procedure not possible at present

SAP Error Message - Details

• Message type: E = Error

• Message class: WM - IS-R Assortments

• Message number: 126

• Message text: Manual module selection and checking procedure not possible at present

What causes this issue?

Possibility 1:
The listing procedure was defined in Customizing using a combination
which is not possible at present:
manual module selection
checking procedures (profile, classification and layout checks)
Possibility 2:
You are attempting to use a manual module selection procedure in a
function which lists for an individual assortment. This is not allowed
at present.
Possibility 3:
You are attempting to use a manual module selection procedure in a
module maintenance/assignment function. This is not allowed at present.
Possibility 4:
You are attempting to use manual module selection in only one of the
procedures used. It must be used in both.

System Response

INCLUDE ISR_STOP

How to fix this error?

Change the Customizing settings for the listing procedure or use a
different procedure.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WM126 - Manual module selection and checking procedure not possible at present ?

  The SAP error message WM126 ("Manual module selection and checking procedure not possible at present") typically occurs in the Warehouse Management (WM) module when there is an issue with the system's ability to process manual module selections or checks. This can happen for several reasons, and understanding the cause is essential for finding a solution.
  Causes:
  
  System Configuration Issues: The WM module may not be properly configured, leading to issues with manual selections.
  Locking Issues: Another user or process may be locking the necessary resources, preventing manual module selection.
  Transaction State: The transaction you are trying to perform may not be in a state that allows for manual module selection.
  User Authorizations: The user may not have the necessary authorizations to perform the action.
  System Performance: High system load or performance issues may temporarily prevent certain operations.
  
  Solutions:
  
  Check Configuration: Review the configuration settings in the WM module to ensure that everything is set up correctly. This includes checking the warehouse structure, storage types, and other related settings.
  Release Locks: If another user or process is locking the resources, you may need to wait for them to complete their transaction or contact your system administrator to release the locks.
  Review Transaction State: Ensure that the transaction you are trying to perform is in the correct state. If necessary, complete or cancel any previous transactions that may be blocking the current one.
  User Authorizations: Verify that the user has the necessary authorizations to perform the action. This may involve checking roles and permissions in the user profile.
  System Performance: Monitor system performance and check for any ongoing issues. If the system is under heavy load, consider waiting for a less busy time to perform the operation.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Transaction Codes: Familiarize yourself with relevant transaction codes in WM, such as LT01 (Create Transfer Order), LT10 (Transfer Order Confirmation), etc., to understand where the error might be occurring.
  Support: If the issue persists, consider reaching out to SAP support or your internal IT team for further assistance.
  
  By following these steps, you should be able to identify the cause of the WM126 error and implement a solution to resolve it.