How To Fix >2403 - Create function not possible, lot already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: >2 -

• Message number: 403

• Message text: Create function not possible, lot already exists

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message >2403 - Create function not possible, lot already exists ?

  The SAP error message 2403: Create function not possible, lot already exists typically occurs in the context of inventory management or production planning when you attempt to create a new lot for a material that already has an existing lot with the same characteristics. This can happen in various scenarios, such as during goods receipt, production order confirmation, or when trying to create a new lot in the system.
  Cause:
  
  Duplicate Lot Number: The most common cause is that the lot number you are trying to create already exists in the system for the same material.
  Lot Management Settings: The material may be set up to use lot management, and the system is enforcing uniqueness for lot numbers.
  Incorrect Data Entry: There may be a mistake in the data entry, leading to an attempt to create a lot that is already present.
  System Configuration: The configuration settings for lot management may not be aligned with the business processes, leading to conflicts.
  
  Solution:
  
  Check Existing Lots: Verify if the lot number you are trying to create already exists. You can do this by checking the material document or using transaction codes like MB52 (List Warehouse Stocks on Hand) or MSC3N (Display Material Document).
  Use a Unique Lot Number: If the lot already exists, you will need to use a different, unique lot number for your transaction.
  Review Lot Management Settings: Check the material master settings for lot management. Ensure that the settings align with your business processes and that the lot number assignment is correctly configured.
  Consult with Your SAP Administrator: If you are unsure about the settings or how to proceed, consult with your SAP administrator or a functional consultant who can help you troubleshoot the issue further.
  Check for Open Transactions: Ensure that there are no open transactions that might be locking the lot number or causing conflicts.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM03 (Display Material), MB1A (Goods Withdrawal), and CO11N (Confirm Production Order) to navigate through the material and lot management processes.
  SAP Notes: Check SAP Notes for any known issues or patches related to lot management and error message 2403.
  Documentation: Review SAP documentation on lot management and inventory control to understand the implications of lot numbers and how they are managed within the system.
  
  By following these steps, you should be able to resolve the error and proceed with your transaction.