How To Fix B0126 - Number range & not defined for business partner

SAP Error Message - Details

• Message type: E = Error

• Message class: B0 - Business Partner General

• Message number: 126

• Message text: Number range & not defined for business partner

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message B0126 - Number range & not defined for business partner ?

  The SAP error message B0126 indicates that a number range is not defined for a business partner. This typically occurs when you are trying to create or manage a business partner in the SAP system, but the system cannot find a valid number range for the business partner category you are working with.
  Cause:
  
  Missing Number Range Definition: The most common cause of this error is that the number range for the specific business partner category (e.g., organization, person, group) has not been defined in the system.
  Incorrect Configuration: The configuration settings for the business partner may not be set up correctly, leading to the system being unable to assign a number to the new business partner.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access or create business partners, which can lead to this error.
  
  Solution:
  To resolve the B0126 error, follow these steps:
  
  
  Define Number Ranges:
  
  Go to the transaction code BP (Business Partner).
  Navigate to the Administration section.
  Select Number Ranges.
  Check if the number range for the relevant business partner category is defined. If not, you will need to create a new number range.
  Use transaction code SNRO to manage number ranges. You can create a new number range object for business partners if it does not exist.
  
  
  
  Assign Number Ranges:
  
  After defining the number range, ensure that it is assigned to the appropriate business partner role (e.g., customer, vendor).
  You can do this in the same Number Ranges section by linking the defined number range to the specific business partner role.
  
  
  
  Check Configuration:
  
  Ensure that the configuration for business partners is correctly set up in the system. This includes checking the settings in the Customizing (SPRO) under Logistics > Logistics General > Business Partner > Business Partner Roles.
  
  
  
  User Authorizations:
  
  Verify that the user has the necessary authorizations to create or manage business partners. This can be checked in the user roles and profiles assigned to the user.
  
  
  
  Testing:
  
  After making the necessary changes, try to create or manage the business partner again to see if the error persists.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  BP: Business Partner Maintenance
  SNRO: Number Range Objects
  SPRO: Customizing Implementation Guide
  
  
  Documentation: Refer to SAP Help documentation for detailed steps on managing business partners and number ranges.
  Support: If the issue persists after following the above steps, consider reaching out to your SAP support team or consulting the SAP community for further assistance.
  
  By following these steps, you should be able to resolve the B0126 error and successfully manage business partners in your SAP system.