How To Fix NSDM_MIG_CONTROL051 - Aggregate group processing ended (but there are unprocessed groups)

SAP Error Message - Details

• Message type: E = Error

• Message class: NSDM_MIG_CONTROL - Log message for migration

• Message number: 051

• Message text: Aggregate group processing ended (but there are unprocessed groups)

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 NSDM_MIG_CONTROL051 - Aggregate group processing ended (but there are unprocessed groups) ?

  The SAP error message NSDM_MIG_CONTROL051 indicates that during the processing of aggregate groups, the system encountered unprocessed groups, which means that not all data was successfully processed or migrated as expected. This error typically arises in the context of data migration or when working with the SAP Data Migration (NSDM) tool.
  Causes:
  
  Data Inconsistencies: There may be inconsistencies or issues in the data that prevent certain groups from being processed.
  Configuration Issues: Incorrect configuration settings in the migration tool or in the data model can lead to unprocessed groups.
  Missing Dependencies: Some groups may depend on other data or configurations that are not present or not correctly set up.
  Performance Issues: If the system is under heavy load or if there are performance bottlenecks, it may not be able to process all groups in a timely manner.
  Errors in Data Mapping: If the mapping of data from the source to the target is incorrect, it can lead to unprocessed groups.
  
  Solutions:
  
  Check Logs: Review the detailed logs generated during the migration process to identify specific errors or warnings related to the unprocessed groups.
  Data Validation: Validate the data for inconsistencies or errors. Ensure that all required fields are populated and that data types match the expected formats.
  Configuration Review: Double-check the configuration settings in the migration tool and ensure that all necessary parameters are correctly set.
  Dependency Check: Ensure that all dependencies for the unprocessed groups are met. This may involve checking related data or configurations.
  Performance Monitoring: Monitor system performance during the migration process. If necessary, optimize the system or schedule the migration during off-peak hours.
  Re-run Migration: After addressing the identified issues, re-run the migration process to see if the problem persists.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to the NSDM tool and the specific error message for any patches or updates that may address known issues.
  Documentation: Refer to the official SAP documentation for the Data Migration tool for best practices and troubleshooting steps.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered similar issues and can provide insights or solutions.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.