How To Fix BG027 - Only internal numbers allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: BG - Warranty processing

• Message number: 027

• Message text: Only internal numbers allowed

What causes this issue?

Only internal number assignment is allowed for the warranty number
entered.

System Response

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

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message BG027 - Only internal numbers allowed ?

  The SAP error message BG027: Only internal numbers allowed typically occurs in the context of business partner or customer/vendor master data management. This error indicates that the system is expecting an internal number assignment for a business partner or master data record, but an external number or an invalid format has been provided instead.
  Cause:
  
  External Number Assignment: The system is configured to use internal number assignment for business partners, but an external number was entered.
  Configuration Settings: The settings in the system may be configured to only allow internal numbers for certain types of records.
  Data Entry Error: Users may have mistakenly entered an external number when the system is set to accept only internal numbers.
  
  Solution:
  
  
  Check Number Assignment Configuration:
  
  Go to the configuration settings for business partner or customer/vendor master data.
  Ensure that the number assignment is set to "Internal" for the relevant business partner type.
  
  
  
  Use Internal Number:
  
  If you are trying to create or modify a business partner, ensure that you are using the internal number assigned by the system.
  You can usually find the internal number in the system after the record is created.
  
  
  
  Review User Input:
  
  Double-check the input fields to ensure that you are not mistakenly entering an external number.
  If you are unsure about the internal number, you can search for the business partner using the search functionality in SAP.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation or help files related to business partner management for more details on number assignment.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot identify the cause, consider reaching out to your SAP support team or consulting SAP Notes for any known issues related to this error.
  
  
  
  Related Information:
  
  Transaction Codes: You may encounter this error while using transaction codes like BP (Business Partner), XD01 (Create Customer), or MK01 (Create Vendor).
  SAP Notes: Check SAP Notes for any updates or patches that may address this issue.
  User Roles and Authorizations: Ensure that the user has the necessary authorizations to create or modify business partner records.
  
  By following these steps, you should be able to resolve the BG027 error and successfully manage your business partner or master data in SAP.