How To Fix DGA502 - Assignment of mode-of-transport category &1 is not permitted

SAP Error Message - Details

• Message type: E = Error

• Message class: DGA - DG: Messages for Dangerous Goods Management (A)

• Message number: 502

• Message text: Assignment of mode-of-transport category &1 is not permitted

What causes this issue?

You attempted to assign a <DS:DE.ADGE_COLL_MOT>collective
mode-of-transport category</> to another collective mode-of-transport
category. However, collective mode-of-transport categories cannot be
nested within each other.

System Response

The system does not allow the assignment.

How to fix this error?

Select a different mode-of-transport category other than &V1& or check
the definition of the mode-of-transport category &V1& in the IMG
activity <DS:SIMG.GGA_200_100_170>Specify Mode-of-Transport Category</>.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DGA502 - Assignment of mode-of-transport category &1 is not permitted ?

  The SAP error message DGA502, which states "Assignment of mode-of-transport category &1 is not permitted," typically occurs in the context of transportation management or logistics within the SAP system. This error indicates that there is an issue with the assignment of a specific mode of transport category in the system, which is not allowed due to configuration or data integrity issues.
  Causes:
  
  Incorrect Configuration: The mode of transport category may not be properly configured in the system. This could be due to missing entries in the customizing settings for transportation management.
  Incompatible Transport Modes: The mode of transport being assigned may not be compatible with the specific logistics scenario or business process being executed.
  Authorization Issues: The user may not have the necessary authorizations to assign the specified mode of transport category.
  Data Integrity Issues: There may be inconsistencies in the master data related to transport modes, such as missing or incorrect entries in the transport mode master data.
  
  Solutions:
  
  
  Check Configuration: Review the configuration settings for the mode of transport categories in the SAP system. Ensure that the category you are trying to assign is correctly defined and active.
  
  Navigate to the relevant customizing transaction (e.g., SPRO) and check the settings under Logistics Execution or Transportation Management.
  
  
  
  Verify Transport Mode Compatibility: Ensure that the mode of transport you are trying to assign is compatible with the logistics process you are working with. Check if there are any restrictions or specific requirements for the transport mode in question.
  
  
  Review User Authorizations: Check the user roles and authorizations to ensure that the user has the necessary permissions to perform the assignment. If not, work with your SAP security team to grant the required access.
  
  
  Check Master Data: Review the master data for transport modes to ensure that all necessary entries are present and correctly configured. This includes checking for any missing or incorrect data that could lead to the error.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on the mode of transport categories and their configurations.
  
  
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. They may provide insights based on the specific version and configuration of your SAP system.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SPRO (Customizing), O4T1 (Maintain Transport Modes), and others that may be useful for checking configurations.
  SAP Notes: Search for SAP Notes related to DGA502 for any known issues or patches that may address the error.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the DGA502 error and implement a suitable solution.