How To Fix R1091 - Grouping & has external number assignment, enter a number

SAP Error Message - Details

• Message type: E = Error

• Message class: R1 - Business Partner Messages from S_BUPA_GENERAL

• Message number: 091

• Message text: Grouping & has external number assignment, enter a number

What causes this issue?

The business partner needs a key to identify it. This key was not
specified.

System Response

The system issues an error message.

How to fix this error?

Enter a key in the dialog. If it is a background process or an XML
message process, contact your system administrator.

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 R1091 - Grouping & has external number assignment, enter a number ?

  The SAP error message R1091, which states "Grouping & has external number assignment, enter a number," typically occurs when you are trying to create or modify a document (such as a customer or vendor) that is associated with a grouping that has been configured to use external number assignment. This means that the system expects you to provide a specific number for the document instead of allowing the system to generate one automatically.
  Cause:
  
  External Number Assignment: The grouping you are working with is set up to require an external number. This is often configured in the master data settings for customers, vendors, or other entities.
  Missing Number: You did not provide a number when trying to create or modify the document, which is required due to the external number assignment setting.
  
  Solution:
  To resolve this error, you need to provide a valid external number when creating or modifying the document. Here are the steps you can take:
  
  
  Check Grouping Settings:
  
  Go to the configuration settings for the relevant grouping (e.g., customer or vendor account groups).
  Verify that the grouping is indeed set to use external number assignment.
  
  
  
  Enter a Number:
  
  When you are prompted to enter a number, make sure to input a valid number that adheres to the format and range defined for that grouping.
  If you are creating a new entry, ensure that the number you enter does not already exist in the system.
  
  
  
  Review Number Ranges:
  
  Check the number range settings for the grouping to ensure that the number you are trying to enter falls within the defined range.
  If necessary, you may need to adjust the number range settings or create a new number range that accommodates your needs.
  
  
  
  Consult Documentation:
  
  If you are unsure about the specific requirements for the grouping or number assignment, refer to the SAP documentation or consult with your SAP administrator.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes such as OBAS (for number range maintenance) or SPRO (to access the configuration settings) to check and modify the settings.
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions related to this error message.
  User Roles and Authorizations: Ensure that you have the necessary authorizations to create or modify the document in question.
  
  By following these steps, you should be able to resolve the R1091 error and successfully create or modify the document in SAP.