How To Fix IM123 - Assembly &1 in planning plant &2 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: IM - Maintenance notifications

• Message number: 123

• Message text: Assembly &1 in planning plant &2 does not exist

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 IM123 - Assembly &1 in planning plant &2 does not exist ?

  The SAP error message IM123 indicates that there is an issue with the assembly or component in the planning plant specified in the transaction. This error typically arises when the system cannot find the specified assembly in the given planning plant. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Non-Existent Assembly: The assembly (or material) specified in the error message does not exist in the specified planning plant.
  Incorrect Planning Plant: The planning plant specified may be incorrect or not set up properly in the system.
  Master Data Issues: The material master data for the assembly may not be maintained correctly, or the assembly may not be assigned to the planning plant.
  Data Migration Issues: If data was recently migrated or imported, there may have been errors in the data transfer that resulted in missing or incorrect entries.
  
  Solutions:
  
  
  Check Material Existence:
  
  Use transaction code MM03 to check if the assembly exists in the specified planning plant. Enter the material number and check the plant data.
  
  
  
  Verify Planning Plant:
  
  Ensure that the planning plant specified in the transaction is correct. You can check the planning plant settings in the material master or in the relevant configuration settings.
  
  
  
  Maintain Material Master:
  
  If the assembly does not exist in the planning plant, you may need to create or extend the material master record for that assembly in the specified planning plant using transaction code MM01 or MM02.
  
  
  
  Check Configuration:
  
  Ensure that the planning plant is correctly configured in the system. This includes checking the settings in the configuration for materials management and production planning.
  
  
  
  Data Consistency Check:
  
  If data migration was involved, perform a consistency check to ensure that all necessary data has been correctly migrated and is available in the system.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or consult with your SAP support team for any specific configurations or settings that may be required for your particular implementation.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  MM01: Create Material
  MM02: Change Material
  MM03: Display Material
  MD04: Stock/Requirements List
  MDM1: Create Material Master Data
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Roles and Authorizations: Ensure that the user has the necessary authorizations to view or modify the material master data.
  
  By following these steps, you should be able to identify the root cause of the IM123 error and implement the necessary solutions to resolve it.