How To Fix SWF_HTTP111 - Conversion error in the container serialization

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_HTTP - Web Services in the Workflow: Server Functions

• Message number: 111

• Message text: Conversion error in the container serialization

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SWF_HTTP111 - Conversion error in the container serialization ?

  The SAP error message SWF_HTTP111, which indicates a "Conversion error in the container serialization," typically occurs in the context of SAP Workflow or when dealing with web services and HTTP communication. This error suggests that there is an issue with the serialization or deserialization of data being sent or received, often due to data type mismatches or incorrect data formats.
  Causes:
  
  Data Type Mismatch: The data being sent does not match the expected data type in the workflow container. For example, if a string is expected but an integer is provided, this can lead to conversion errors.
  Invalid Data Format: The data being serialized may not conform to the expected format, such as incorrect date formats or special characters that are not handled properly.
  Container Structure Issues: The structure of the workflow container may not align with the data being passed, leading to serialization issues.
  Version Mismatch: If there are different versions of the workflow or service being called, it may lead to incompatibilities in the data being processed.
  Network Issues: Sometimes, network issues can lead to incomplete data being sent or received, causing serialization errors.
  
  Solutions:
  
  Check Data Types: Ensure that the data types being passed in the workflow match the expected types. Review the workflow container and the data being sent to ensure compatibility.
  Validate Data Formats: Make sure that the data being serialized adheres to the expected formats. For example, check date formats, number formats, and ensure that special characters are properly encoded.
  Review Workflow Container: Inspect the workflow container structure to ensure it matches the data being passed. Adjust the container or the data as necessary.
  Debugging: Use debugging tools to trace the workflow execution and identify where the conversion error occurs. This can help pinpoint the exact data causing the issue.
  Check Service Interfaces: If the error occurs during a web service call, verify that the service interface definitions are consistent and that the correct versions are being used.
  Error Handling: Implement error handling in your workflow to catch and log serialization errors, which can provide more context for troubleshooting.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to SWF_HTTP111 for any specific patches or updates that may address known issues.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and what solutions they have found.
  Documentation: Review SAP documentation on workflows and HTTP communication for best practices and guidelines on data serialization.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance, providing them with detailed logs and context around the error.