How To Fix GMMASTERDATA146 - Grant type &1 does not allow external number assignment

SAP Error Message - Details

• Message type: E = Error

• Message class: GMMASTERDATA - Grant master data maintenance messages only

• Message number: 146

• Message text: Grant type &1 does not allow external number assignment

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message GMMASTERDATA146 - Grant type &1 does not allow external number assignment ?

  The SAP error message GMMASTERDATA146 indicates that the grant type specified does not permit external number assignment for the grant. This typically occurs in the context of Grant Management (GM) in SAP, where grants are created and managed.
  Cause:
  The error arises when you attempt to create or assign a grant number externally (i.e., using a number that is not generated by the system) for a grant type that is configured to only allow internal number assignment. This is often a configuration issue related to the settings of the grant type in the system.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Grant Type Configuration:
  
  Go to the configuration settings for Grant Management in SAP.
  Navigate to the transaction code SPRO and follow the path: 
  
  SAP Reference IMG > Grants Management > Master Data > Define Grant Types.
  
  
  Look for the specific grant type that you are trying to use and check its settings.
  
  
  
  Adjust Number Assignment Settings:
  
  In the grant type configuration, check the settings related to number assignment.
  If you want to allow external number assignment, you may need to change the configuration to permit it. This might involve setting the number assignment to "External" instead of "Internal."
  
  
  
  Use Internal Number Assignment:
  
  If changing the configuration is not an option, consider using the internal number assignment for the grant type. This means allowing the system to generate the grant number automatically.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation or help files related to Grant Management for more detailed information on configuring grant types and number assignments.
  
  
  
  Testing:
  
  After making any changes, test the creation of the grant again to ensure that the error is resolved.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SPRO: Access to the SAP Customizing Implementation Guide.
  GMGRANT: To manage grants directly.
  
  
  
  SAP Notes:
  
  Check for any relevant SAP Notes that might address this specific error or provide additional guidance on configuring grant types.
  
  
  
  User Roles and Authorizations:
  
  Ensure that you have the necessary authorizations to make changes to the grant type configuration.
  
  
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis or functional team for further assistance, as they may have more insights into the specific configuration of your SAP environment.