How To Fix RSTT0186 - Error during deserialization

SAP Error Message - Details

• Message type: E = Error

• Message class: RSTT0 - Trace Tool: Message Class Engine Layer

• Message number: 186

• Message text: Error during deserialization

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.

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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 RSTT0186 - Error during deserialization ?

  The SAP error message RSTT0186, which indicates "Error during deserialization," typically occurs in the context of SAP's transport management system or when dealing with data transfer processes. This error can arise due to various reasons, including issues with the data format, inconsistencies in the transport request, or problems with the underlying system configuration.
  Causes:
  
  Corrupted Transport Request: The transport request may be corrupted or incomplete, leading to deserialization issues.
  Version Mismatch: There may be a mismatch between the versions of the source and target systems, causing incompatibility in the data structure.
  Data Format Issues: The data being transferred may not conform to the expected format, leading to deserialization errors.
  Network Issues: Temporary network issues during data transfer can lead to incomplete or corrupted data.
  Configuration Issues: Incorrect configuration settings in the transport management system or related components can also lead to this error.
  
  Solutions:
  
  Check Transport Request: Verify the integrity of the transport request. If it is corrupted, you may need to recreate it or restore it from a backup.
  Version Compatibility: Ensure that both the source and target systems are compatible in terms of version and configuration. If there are discrepancies, consider upgrading or aligning the systems.
  Review Data Formats: Check the data formats being used in the transport request. Ensure that they match the expected formats in the target system.
  Network Stability: Ensure that the network connection is stable and that there are no interruptions during the transport process.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error. SAP frequently releases updates and patches that can resolve known issues.
  Debugging: If you have access to the development environment, you can enable debugging to trace the deserialization process and identify the exact point of failure.
  Consult SAP Support: If the issue persists, consider reaching out to SAP support for assistance. They can provide more specific guidance based on your system configuration and the context of the error.
  
  Related Information:
  
  SAP Notes: Always check the SAP Support Portal for any relevant notes or updates related to the error message RSTT0186.
  Transport Management System (TMS): Familiarize yourself with the TMS configuration and best practices to avoid transport-related issues.
  System Logs: Review system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to diagnose and resolve the RSTT0186 error effectively.