How To Fix /ISDFPS/MM479 - NSN must be 9 digits (& not permitted)

SAP Error Message - Details

• Message type: E = Error

• Message class: /ISDFPS/MM -

• Message number: 479

• Message text: NSN must be 9 digits (& not permitted)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /ISDFPS/MM479 - NSN must be 9 digits (& not permitted) ?

  The SAP error message /ISDFPS/MM479 NSN must be 9 digits (& not permitted) typically occurs in the context of managing National Stock Numbers (NSNs) within the SAP system, particularly in modules related to materials management or logistics. This error indicates that the NSN you are trying to enter does not conform to the expected format, which requires it to be exactly 9 digits long.
  Cause:
  
  Incorrect Length: The NSN entered is either too short or too long. NSNs should be exactly 9 digits.
  Non-numeric Characters: The NSN may contain non-numeric characters (letters, special characters, etc.), which are not permitted.
  Leading Zeros: If the NSN is supposed to have leading zeros, and they are omitted, it may not be recognized as a valid 9-digit number.
  Data Entry Error: There may have been a typographical error during data entry.
  
  Solution:
  
  Check the NSN Format: Ensure that the NSN you are entering is exactly 9 digits long and consists only of numeric characters (0-9).
  Correct Data Entry: If you find any non-numeric characters or if the length is incorrect, correct the entry accordingly.
  Leading Zeros: If the NSN should have leading zeros, make sure to include them. For example, if the NSN is supposed to be 000123456, entering 123456 will cause this error.
  Validation: Use validation tools or scripts within SAP to check the format of the NSN before submission.
  Consult Documentation: Refer to your organization's SAP documentation or guidelines for entering NSNs to ensure compliance with any specific requirements.
  
  Related Information:
  
  NSN Definition: A National Stock Number (NSN) is a unique identifier for items of supply that are procured, stocked, stored, and issued throughout the federal supply system.
  SAP Modules: This error is often encountered in modules like MM (Materials Management) or SD (Sales and Distribution) where inventory and stock management are critical.
  SAP Notes: Check SAP Notes or the SAP Support Portal for any updates or patches related to this error message, as there may be specific fixes or enhancements available.
  
  If the issue persists after checking the above points, it may be beneficial to consult with your SAP support team or a technical consultant who can provide further assistance.