How To Fix EM166 - Insert is not possible - maximum entry of 5 migration objects

SAP Error Message - Details

• Message type: E = Error

• Message class: EM - IS-U Migration

• Message number: 166

• Message text: Insert is not possible - maximum entry of 5 migration objects

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message EM166 - Insert is not possible - maximum entry of 5 migration objects ?

  The SAP error message EM166, which states "Insert is not possible - maximum entry of 5 migration objects," typically occurs during data migration processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that you are trying to insert more migration objects than the allowed limit.
  Cause:
  The error is caused by attempting to insert more than the maximum allowed number of migration objects in a single migration run. In this case, the limit is set to 5 migration objects. This restriction is in place to ensure that the migration process remains manageable and does not overwhelm the system.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review Migration Objects: Check the migration objects you are trying to insert. Ensure that you are not exceeding the limit of 5 objects in a single migration run.
  
  
  Split Migration Runs: If you have more than 5 migration objects, consider splitting your migration into multiple runs. For example, you can group your migration objects into batches of 5 or fewer and execute them separately.
  
  
  Check Migration Cockpit Settings: If you are using the Migration Cockpit, review the settings and configurations to ensure they align with the requirements of your migration project.
  
  
  Consult Documentation: Refer to the official SAP documentation for the Migration Cockpit or the specific migration tool you are using. This documentation may provide additional insights into limitations and best practices.
  
  
  Error Logs: Check the error logs for more detailed information about the migration process. This can help identify any other underlying issues that may be contributing to the error.
  
  
  SAP Support: If you continue to experience issues, consider reaching out to SAP Support for assistance. They can provide guidance based on your specific system configuration and migration scenario.
  
  
  Related Information:
  
  Migration Cockpit: The SAP S/4HANA Migration Cockpit is a tool designed to facilitate the migration of data from legacy systems to SAP S/4HANA. It supports various migration objects and provides a user-friendly interface for managing the migration process.
  Migration Objects: Migration objects represent specific data entities that need to be migrated, such as customers, vendors, materials, etc. Each object may have its own set of requirements and limitations.
  Best Practices: When performing data migrations, it is essential to follow best practices, such as thorough testing, data validation, and ensuring that the migration process is well-documented.
  
  By following these steps and recommendations, you should be able to resolve the EM166 error and successfully complete your data migration.