How To Fix MW437 - Order type &1 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: MW - Messages IS-R / Allocation Tables

• Message number: 437

• Message text: Order type &1 does not exist

What causes this issue?

You entered an invalid order type.

System Response

The order type cannot be changed.

How to fix this error?

Please choose an existing order type or maintain the order type
required in Customizing.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MW437 - Order type &1 does not exist ?

  The SAP error message MW437, which states "Order type &1 does not exist," typically occurs when the system is unable to find a specific order type that is being referenced in a transaction. This can happen in various contexts, such as when creating or processing orders in modules like Materials Management (MM) or Production Planning (PP).
  Cause:
  
  Incorrect Order Type: The order type specified in the transaction does not exist in the system. This could be due to a typo or an incorrect reference.
  Configuration Issues: The order type may not have been configured properly in the system. This can happen if the order type was deleted or not set up in the relevant configuration settings.
  Authorization Issues: The user may not have the necessary authorizations to access the specified order type.
  Client-Specific Settings: The order type may exist in one client but not in another, leading to this error when switching between clients.
  
  Solution:
  
  Check Order Type: Verify that the order type you are trying to use is correct. Check for any typos or incorrect entries.
  Configuration Check: 
  
  Go to the configuration settings in SAP (Transaction SPRO).
  Navigate to the relevant module (e.g., MM or PP) and check the settings for order types.
  Ensure that the order type is defined and active.
  
  
  Authorization Check: Ensure that the user has the necessary authorizations to access the order type. This can be checked with the help of a security administrator.
  Client Check: If you are working in a multi-client environment, ensure that the order type exists in the client you are currently using.
  Consult Documentation: If the order type is supposed to exist but does not, consult the documentation or reach out to your SAP support team for further assistance.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like OMH1 (for order type configuration) or CO02 (to change production orders) to investigate further.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Forums: SAP Community forums can be a good resource for finding similar issues and solutions shared by other users.
  
  If the issue persists after checking the above points, it may be necessary to involve your SAP Basis or technical team for deeper investigation.