How To Fix VO026 - Problem in number assignment

SAP Error Message - Details

• Message type: E = Error

• Message class: VO - W&S: Rough workload forecast + picking wave

• Message number: 026

• Message text: Problem in number assignment

What causes this issue?

Here you are dealing with the number range object &V1&, the number range
interval &V2&, and the cause of the error &V3&.
The error causes have the following meanings:

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

1 = Number range interval for object not defined
2 = Number range not internal
3 = Number range object not defined
6 = Number range interval used up, re-use not possible
7 = Non-foreseen error
8 = Non-foreseen error

System Response

The picking wave cannot be created.

How to fix this error?

In cases 1 through 6, the respective Customizing entries should be
corrected. Inform the person responsible for Customizing settings or
your system administrator.
In cases 7 - 8, this is probably an error in an ABAP/4 program. Contact
your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message VO026 - Problem in number assignment ?

  SAP Error Message:
  
  VO026 - Problem in number assignment
  
  Cause:
  The error message VO026 typically occurs during the creation or processing of sales documents (such as sales orders, deliveries, billing documents) when there is an issue with the automatic number assignment. This means that the system is unable to assign a unique document number because:
  
  The number range interval for the document type is not properly defined or has been exhausted.
  The number range object is not assigned to the sales document type.
  The number range interval is not active or incorrectly maintained.
  There is a mismatch or inconsistency in the number range configuration.
  The number range buffer is full or corrupted.
  
  
  Solution:
  To resolve the VO026 - Problem in number assignment error, follow these steps:
  
  
  Check Number Range Intervals:
  
  Go to transaction VOV8 (for sales document types) or SNRO (Number Range Objects).
  Identify the number range object related to the document type (e.g., VBAK for sales orders).
  Verify that the number range intervals are correctly defined and active.
  Ensure that the number range interval has not been exhausted (i.e., the current number is less than the upper limit).
  
  
  
  Assign Number Range to Document Type:
  
  In VOV8, check that the sales document type is assigned to the correct number range object.
  If missing, assign the appropriate number range interval.
  
  
  
  Check Number Range Buffer:
  
  Sometimes the number range buffer can get corrupted.
  Run transaction SNRO, select the number range object, and use the "Number Range Buffer" function to refresh or reset the buffer.
  
  
  
  Extend Number Range Interval:
  
  If the number range interval is exhausted, create a new interval with a higher range.
  Assign the new interval to the number range object.
  
  
  
  Check Authorization:
  
  Ensure the user has the necessary authorization to create documents and assign numbers.
  
  
  
  Check for Custom Enhancements or User Exits:
  
  Sometimes custom code can interfere with number assignment.
  Review any user exits or BAdIs related to number assignment.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  VOV8 - Maintain Sales Document Types and Number Ranges
  SNRO - Number Range Objects Maintenance
  SE91 - Message Maintenance (to check message text and details)
  
  
  
  Number Range Objects Commonly Used:
  
  VBAK - Sales Document Header (Sales Orders)
  LIKP - Delivery Document
  VBRK - Billing Document
  
  
  
  SAP Notes:
  
  Check SAP Notes related to number range issues for your specific SAP version.
  
  
  
  Additional Tips:
  
  Always perform number range changes in a development or test system first.
  Backup current number range settings before making changes.
  Coordinate with your SAP Basis team if you need to reset buffers or perform system-level changes.
  
  
  
  
  Summary:
  
  The VO026 error arises due to problems in assigning document numbers, usually caused by misconfigured or exhausted number ranges. Correcting the number range intervals, ensuring proper assignment, and refreshing buffers typically resolves the issue.