How To Fix DMCLG428 - Access plan &2 of migration object &1 has not yet been calculated

SAP Error Message - Details

• Message type: E = Error

• Message class: DMCLG - DMC Tool Development

• Message number: 428

• Message text: Access plan &2 of migration object &1 has not yet been calculated

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 DMCLG428 - Access plan &2 of migration object &1 has not yet been calculated ?

  The SAP error message DMCLG428 indicates that the access plan for a migration object has not yet been calculated. This typically occurs during data migration processes, such as when using the Data Migration Cockpit or other data transfer tools in SAP.
  Cause:
  
  Access Plan Not Generated: The access plan is a critical component that defines how data will be accessed and processed during the migration. If the access plan has not been generated, the system cannot proceed with the migration.
  Incomplete Configuration: There may be missing configurations or settings in the migration object that prevent the access plan from being calculated.
  System Issues: Temporary system issues or inconsistencies in the database can also lead to this error.
  
  Solution:
  
  
  Generate Access Plan: 
  
  Go to the relevant transaction or tool where the migration is being executed.
  Look for an option to generate or calculate the access plan for the migration object. This may involve running a specific report or executing a function module.
  
  
  
  Check Configuration:
  
  Review the configuration settings for the migration object. Ensure that all required fields and parameters are correctly set up.
  Verify that the migration object is properly defined in the system.
  
  
  
  Re-run Migration:
  
  After generating the access plan, attempt to re-run the migration process to see if the error persists.
  
  
  
  Check Logs:
  
  Review the application logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific migration object you are working with. There may be specific steps or prerequisites that need to be followed.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance. Provide them with the error message and any relevant details about your migration process.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as LTMOM (Migration Object Modeler) or LTMC (Migration Cockpit) that are used for data migration.
  SAP Notes: Search for SAP Notes related to DMCLG428 for any known issues or patches that may address this error.
  Migration Best Practices: Review best practices for data migration in SAP to ensure that all necessary steps are followed.
  
  By following these steps, you should be able to resolve the DMCLG428 error and successfully calculate the access plan for your migration object.