How To Fix CNV20201400 - Error during data transmission

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20201 -

• Message number: 400

• Message text: Error during data transmission

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 CNV20201400 - Error during data transmission ?

  The SAP error message CNV20201400, which indicates "Error during data transmission," typically occurs during data migration or data transfer processes, particularly when using SAP's data migration tools or during system conversions. This error can arise due to various reasons, including network issues, configuration problems, or data inconsistencies.
  Causes:
  
  Network Issues: Temporary network disruptions can lead to data transmission errors.
  Configuration Errors: Incorrect settings in the data migration tool or in the source/target systems can cause failures.
  Data Inconsistencies: Issues with the data being transferred, such as missing mandatory fields or data format mismatches.
  Timeouts: Long-running processes may exceed timeout settings, leading to transmission errors.
  Authorization Issues: Insufficient permissions for the user or service account performing the data transfer.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there are no network issues between the source and target systems. You can use tools like ping or traceroute to diagnose connectivity.
  Review Configuration Settings: Verify that all configuration settings in the data migration tool