How To Fix CNV_MBT320 - Required entry &1 has not been made

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT - PCL message class

• Message number: 320

• Message text: Required entry &1 has not been made

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 CNV_MBT320 - Required entry &1 has not been made ?

  The SAP error message CNV_MBT320 with the description "Required entry &1 has not been made" typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that a required field or entry has not been filled in or is missing in the migration data.
  Cause:
  The error is usually caused by one of the following reasons:
  
  Missing Mandatory Fields: The migration data does not include all the mandatory fields required for the specific migration object.
  Incorrect Mapping: The mapping of source data to target fields may not be correctly defined, leading to missing entries.
  Data Validation Issues: The data being migrated may not meet the validation rules set in the target system, causing the migration process to halt.
  Configuration Issues: There may be configuration settings in the migration tool that are not properly set up, leading to missing entries.
  
  Solution:
  To resolve the CNV_MBT320 error, you can follow these steps:
  
  
  Check Required Fields: Review the migration template or the data mapping to ensure that all required fields are filled in. Look for the specific field indicated by &1 in the error message.
  
  
  Validate Data: Ensure that the data being migrated adheres to the required formats and constraints. This includes checking for data types, lengths, and any specific business rules.
  
  
  Review Mapping Configuration: If you are using a mapping tool, verify that the source fields are correctly mapped to the target fields. Make sure that all mandatory fields in the target system have corresponding values in the source data.
  
  
  Consult Documentation: Refer to the SAP documentation for the specific migration object you are working with. This documentation often includes details about required fields and common issues.
  
  
  Use Migration Cockpit Tools: If you are using the SAP S/4HANA Migration Cockpit, utilize the built-in tools to check for errors and warnings in your migration data. The cockpit often provides detailed logs that can help identify missing entries.
  
  
  Test Migration: Before performing a full migration, conduct a test migration with a smaller dataset to identify any issues early in the process.
  
  
  Seek Support: If the issue persists, consider reaching out to SAP support or consulting with an SAP expert who can provide guidance based on your specific scenario.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit and its functionalities, as it provides tools for data validation and error handling.
  Data Migration Best Practices: Review best practices for data migration in SAP environments to ensure a smooth transition.
  
  By following these steps, you should be able to identify and resolve the cause of the CNV_MBT320 error in your SAP migration process.