How To Fix MW199 - Enter interval for internal or external number assignment

SAP Error Message - Details

• Message type: E = Error

• Message class: MW - Messages IS-R / Allocation Tables

• Message number: 199

• Message text: Enter interval for internal or external number assignment

What causes this issue?

Either you did not enter any interval for number assignment or you
entered an interval for both internal and external assignment.

System Response

INCLUDE ISR_VERARBEITUNG

How to fix this error?

Enter either an interval for internal or for external number
assignment.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MW199 - Enter interval for internal or external number assignment ?

  The SAP error message MW199, which states "Enter interval for internal or external number assignment," typically occurs when you are trying to create or manage number ranges for certain objects in SAP, such as material documents, purchase orders, or other transactional data. This error indicates that the system requires you to define a number range interval for the specific object you are working with.
  Cause:
  The error is caused by the absence of a defined number range interval for the internal or external number assignment for the object you are trying to create or modify. In SAP, number ranges are used to ensure that each document or transaction has a unique identifier, and if these ranges are not set up correctly, the system will prompt this error.
  Solution:
  To resolve the MW199 error, you need to define the number range intervals for the relevant object. Here are the steps to do this:
  
  
  Access the Number Range Maintenance:
  
  Go to transaction code SNRO (Number Range Objects).
  Alternatively, you can use transaction code OMH1 for material documents or other relevant transaction codes depending on the object.
  
  
  
  Select the Appropriate Object:
  
  In the Number Range Object screen, enter the object name for which you want to define the number range (e.g., material, purchase order, etc.).
  Click on the "Intervals" button or navigate to the intervals section.
  
  
  
  Define the Number Range Intervals:
  
  If there are no existing intervals, you will need to create a new one.
  Click on "Insert" to add a new interval.
  Specify the following:
  
  Number Range: Define the range of numbers (e.g., 100000 to 199999).
  From Number: The starting number of the range.
  To Number: The ending number of the range.
  Status: Set the status to "Active."
  
  
  Save your changes.
  
  
  
  Check for External Number Assignment:
  
  If you are using external number assignment, ensure that the external number range is also defined correctly.
  
  
  
  Test the Configuration:
  
  After defining the number range, try to create or modify the object again to see if the error persists.
  
  
  
  Related Information:
  
  Authorization: Ensure that you have the necessary authorizations to maintain number ranges in SAP.
  Number Range Object Documentation: Refer to SAP documentation for specific number range objects related to your business processes.
  Transaction Codes: Familiarize yourself with relevant transaction codes for number range management, such as SNRO, OMH1, and others depending on the context.
  Consult SAP Notes: If the issue persists, check SAP Notes for any known issues or additional guidance related to the specific object you are working with.
  
  By following these steps, you should be able to resolve the MW199 error and successfully manage number assignments in SAP.