How To Fix W5006 - Not possible to assign a number (Please check number assignment)

SAP Error Message - Details

• Message type: E = Error

• Message class: W5 - Messages for MM-WEB Applications and BAPIs

• Message number: 006

• Message text: Not possible to assign a number (Please check number assignment)

What causes this issue?

No free number could be found in the number range interval 10 of number
range object RESB (reservations) or the number range interval 10 does
not exist.

System Response

It is not possible for a requirement coverage request to be created.
&WHAT_TO_DO& for the system administrator.
Adjust the number range object in the Customizing facility for
Inventory Management as follows:

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

Change the interval with the number 01 to 0000000001 to 0019999999
Insert a new interval with the number 10 from 0090000000 to 0099999999.
<DS:SIMG.SIMG_CFMENUOLMBOMC2>Define number assignment for
reservations</>

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message W5006 - Not possible to assign a number (Please check number assignment) ?

  SAP Error Message:
  
  W5006 - Not possible to assign a number (Please check number assignment)
  
  Cause:
  This warning message typically occurs when SAP is unable to assign a number to a document or object because the number range interval is either not defined, not assigned, or has been exhausted (no more numbers available). Number ranges are used in SAP to uniquely identify documents, master data, or other objects, and if the system cannot find a valid number within the assigned range, it throws this error.
  Common causes include:
  
  Number range interval for the object is not defined or missing.
  Number range interval is defined but not assigned to the relevant object or transaction.
  Number range interval is defined and assigned but has reached its upper limit (all numbers used).
  Number range object is set to external number assignment but no number is provided.
  Customizing or configuration inconsistencies in number range setup.
  
  
  Solution:
  
  
  Check Number Range Intervals:
  
  Go to the relevant number range maintenance transaction (e.g., SNRO or SNUM).
  Enter the number range object related to the document or object type causing the error.
  Verify if number range intervals exist and are valid.
  
  
  
  Check Number Range Assignment:
  
  Ensure the number range object is correctly assigned to the application or transaction.
  For example, in Financial Accounting, check number range assignment in transaction FBN1 or relevant customizing paths.
  
  
  
  Check Number Range Availability:
  
  Verify if the current number range interval has available numbers.
  If the interval is exhausted, create a new number range interval with a higher range.
  
  
  
  Adjust Number Range Settings:
  
  If external number assignment is used, ensure the user provides a valid number.
  If internal number assignment is used, ensure the number range intervals are properly maintained.
  
  
  
  Transport and Configuration:
  
  If the system was recently transported or configured, verify that number range settings were correctly transported and activated.
  
  
  
  Example:
  
  For Sales Documents, check number ranges in VOV8.
  For FI documents, check in FBN1.
  For Material documents, check in OMH6.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SNRO - Number Range Objects maintenance
  SNUM - Number Range Intervals maintenance
  FBN1 - Number Range Maintenance for FI documents
  VOV8 - Number Range for Sales Documents
  OMH6 - Number Range for Material Documents
  
  
  
  SAP Notes and Documentation:
  
  SAP Note 000000 (example) - Check for specific notes related to your module.
  SAP Help Portal: Search for "Number Range" and "Number Range Assignment".
  
  
  
  General Tips:
  
  Always maintain number ranges with some buffer to avoid exhaustion.
  Regularly monitor number range usage in production systems.
  Coordinate with Basis and Functional teams when changing number ranges.
  
  
  
  
  If you provide the specific module or transaction where this error occurs, I can give more targeted advice.