IW401 - System: Interval for number assignment does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: IW - Order Processing

• Message number: 401

• Message text: System: Interval for number assignment does not exist

What causes this issue?

No number range interval has been maintained in your sytem for the
<GL:maintenance_order>maintenance order</>.

System Response

INCLUDE 'KEINE-VERARBEITUNG' OBJECT DOKU ID TX LANGUAGE E

How to fix this error?

Maintain the number range interval for maintenance orders using the
Customizing function:

<DS:TRAN.OION>Proceed</>
ENDIF
INCLUDE 'DARF-NICHT' OBJECT DOKU ID TX LANGUAGE E

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IW401 - System: Interval for number assignment does not exist ?

  The SAP error message IW401 ("System: Interval for number assignment does not exist") typically occurs when the system is unable to find a valid number range interval for the object you are trying to create or modify. This is often related to the creation of maintenance orders, service orders, or other similar objects in the SAP system.
  Cause:
  
  Missing Number Range Interval: The number range for the specific object type (e.g., maintenance order) has not been defined in the system.
  Number Range Configuration: The number range may be defined but not assigned to the relevant object type or may be inactive.
  Authorization Issues: The user may not have the necessary authorizations to access the number range configuration.
  Client-Specific Settings: The number range may be defined in a different client, and the current client does not have access to it.
  
  Solution:
  To resolve the IW401 error, you can follow these steps:
  
  
  Check Number Range Configuration:
  
  Go to transaction code SNRO (Number Range Objects).
  Enter the object name related to the error (e.g., IW01 for maintenance orders) and click on "Intervals".
  Verify if there are valid intervals defined for the number range. If not, you will need to create a new interval.
  
  
  
  Create/Modify Number Range:
  
  If the number range does not exist, you can create it by clicking on "Insert Interval".
  Define the interval with a valid range (e.g., from 100000 to 199999).
  Ensure that the number range is active.
  
  
  
  Assign Number Range to Object:
  
  Ensure that the number range is assigned to the relevant object type in the configuration settings.
  You can check this in transaction code SPRO (SAP Reference IMG) under:
  
  Plant Maintenance and Customer Service > Maintenance and Service Processing > Maintenance and Service Orders > Define Number Ranges for Orders.
  
  
  
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to create or modify the object. This can be checked with the help of your SAP security team.
  
  
  
  Client-Specific Settings:
  
  If the number range is defined in a different client, you may need to transport the configuration or create the number range in the current client.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SNRO: To manage number range objects.
  SPRO: To access the SAP Reference IMG for configuration.
  IW31/IW32: To create or change maintenance orders.
  
  
  
  Documentation: Refer to SAP Help documentation for detailed information on number range management and configuration.
  
  
  Support: If the issue persists after checking the above points, consider reaching out to your SAP Basis or functional support team for further assistance.
  
  
  By following these steps, you should be able to resolve the IW401 error and successfully create or modify the required object in SAP.