How To Fix JAM_OL017 - Problem when transforming from/to JSON

SAP Error Message - Details

• Message type: E = Error

• Message class: JAM_OL - SAP JAM: Message from object layer

• Message number: 017

• Message text: Problem when transforming from/to JSON

What causes this issue?

The system has an issue with a JSON transformation.

System Response

The current transformation is aborted.

How to fix this error?

There are two possible reasons:
The system does not have the required kernel patch level.
There is a programming error. The input for the JSON transformation is
not provided properly by the given application.

Procedure for System Administrators

If the kernel patch level is not correct, see SAP note 1648418 <LS>JSON
Support in ABAP with 7.20 kernel</>.
If the kernel patch level is correct, contact SAP. Open a ticket at SAP
Support for the given application component.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message JAM_OL017 - Problem when transforming from/to JSON ?

  The SAP error message JAM_OL017, which indicates a problem when transforming from/to JSON, typically arises in the context of SAP systems that utilize JSON for data interchange, such as SAP Gateway or SAP Cloud Platform. This error can occur due to various reasons, including issues with the data structure, incorrect mappings, or serialization/deserialization problems.
  Causes:
  
  Invalid JSON Structure: The JSON data being processed may not conform to the expected structure, leading to parsing errors.
  Data Type Mismatches: There may be discrepancies between the data types defined in the SAP system and those present in the JSON payload.
  Missing Required Fields: If the JSON data is missing required fields that the SAP system expects, it can lead to transformation errors.
  Encoding Issues: Problems with character encoding (e.g., UTF-8) can cause issues when processing JSON data.
  Incorrect Mapping: If the mapping between the JSON fields and the SAP data model is incorrect, it can lead to transformation failures.
  
  Solutions:
  
  Validate JSON Structure: Use a JSON validator to ensure that the JSON data is well-formed and adheres to the expected schema.
  Check Data Types: Review the data types in the JSON payload and ensure they match the expected types in the SAP system.
  Ensure Required Fields are Present: Verify that all required fields are included in the JSON data.
  Review Encoding: Ensure that the JSON data is encoded correctly, typically in UTF-8.
  Debug Mapping Logic: If you are using a mapping tool or custom logic, review the mapping to ensure it correctly translates JSON fields to the SAP data model.
  Check SAP Notes: Look for any relevant SAP Notes or updates that may address known issues related to JSON transformation.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for guidelines on working with JSON in your specific SAP environment.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and to find potential solutions.
  Error Logs: Check the application logs or error logs in your SAP system for more detailed information about the error, which can provide clues for troubleshooting.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance, providing them with detailed information about the error and the context in which it occurs.