How To Fix /ISDFPS/MM902 - Could not identify serial numbers uniquely

SAP Error Message - Details

• Message type: E = Error

• Message class: /ISDFPS/MM -

• Message number: 902

• Message text: Could not identify serial numbers uniquely

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /ISDFPS/MM902 - Could not identify serial numbers uniquely ?

  The SAP error message /ISDFPS/MM902 Could not identify serial numbers uniquely typically occurs in the context of managing serial numbers in the SAP system, particularly when dealing with inventory management or logistics processes. This error indicates that the system is unable to uniquely identify a serial number for a specific item, which can happen for several reasons.
  Causes:
  
  Duplicate Serial Numbers: The serial number being processed may already exist in the system for another item or transaction, leading to ambiguity.
  Incorrect Serial Number Assignment: The serial number may not be correctly assigned to the material or may not be linked to the correct batch or stock.
  Configuration Issues: There may be issues with the configuration of serial number management in the system, such as settings that do not allow for unique identification.
  Data Integrity Issues: There could be inconsistencies in the database or issues with data migration that have led to duplicate entries or missing information.
  
  Solutions:
  
  Check for Duplicates: Verify if the serial number in question is already assigned to another item. You can do this by querying the serial number in the relevant tables (e.g., EQUI, SER01).
  Correct Serial Number Assignment: Ensure that the serial number is correctly assigned to the material and that it is not being used elsewhere. If necessary, reassign the serial number to the correct item.
  Review Configuration Settings: Check the configuration settings for serial number management in the SAP system. Ensure that the settings allow for unique identification of serial numbers.
  Data Cleanup: If there are data integrity issues, consider running data cleanup processes or using transaction codes like SE16 to check for inconsistencies in the relevant tables.
  Consult Documentation: Review SAP documentation or notes related to serial number management for any specific guidelines or troubleshooting steps.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as IQ01 (Create Serial Number), IQ02 (Change Serial Number), and IQ03 (Display Serial Number) to manage serial numbers effectively.
  SAP Notes: Check SAP Notes for any known issues or patches related to serial number management that may address this error.
  User Authorization: Ensure that the user has the necessary authorizations to manage serial numbers, as lack of permissions can sometimes lead to errors.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a technical consultant who can provide deeper insights into the specific configuration and data setup in your SAP environment.