How To Fix AO524 - Entering app.request number only possible with external number assignment

SAP Error Message - Details

• Message type: E = Error

• Message class: AO - Appropriation requests - Master data / Customizing

• Message number: 524

• Message text: Entering app.request number only possible with external number assignment

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message AO524 - Entering app.request number only possible with external number assignment ?

  The SAP error message AO524 ("Entering app.request number only possible with external number assignment") typically occurs when you are trying to enter an application request number manually in a transaction that requires the use of an external number assignment. This is common in various SAP modules, particularly in the context of transport requests or change requests.
  Cause:
  The error arises because the system is configured to use internal number assignment for application requests, but you are attempting to enter a request number manually. In SAP, there are two types of number assignments:
  
  Internal Number Assignment: The system automatically generates the request number.
  External Number Assignment: The user can manually enter the request number.
  
  If the system is set to internal number assignment, you cannot manually enter a request number, which leads to this error.
  Solution:
  To resolve the AO524 error, you can take the following steps:
  
  
  Check Number Assignment Configuration:
  
  Go to the transaction code SE03 (Transport Organizer Tools).
  Navigate to the "Transport Request" section and check the configuration for number assignment.
  Ensure that the request type you are working with is set to allow external number assignment if you need to enter a request number manually.
  
  
  
  Use Automatic Number Generation:
  
  If you do not need to enter a specific request number, simply allow the system to generate the request number automatically. This is the recommended approach if you are working in a standard SAP environment.
  
  
  
  Change the Request Type:
  
  If you have the necessary authorizations, you can change the request type to allow external number assignment. This can usually be done in the customizing settings of the transport management system.
  
  
  
  Consult with Basis Team:
  
  If you are unsure about the configuration or do not have the necessary permissions, consult with your SAP Basis team or system administrator. They can provide guidance on how to adjust the settings or help you with the transport request process.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE09 (Workbench Organizer) and SE10 (Customizing Organizer) for managing transport requests.
  SAP Notes: Check SAP Notes for any specific patches or updates related to transport requests and number assignment issues.
  Documentation: Review SAP documentation on transport management and number assignment to understand the implications of changing settings.
  
  By following these steps, you should be able to resolve the AO524 error and proceed with your work in SAP.