How To Fix E0303 - IDoc '&' has syntax error

SAP Error Message - Details

• Message type: E = Error

• Message class: E0 - SAP EDI messages

• Message number: 303

• Message text: IDoc '&' has syntax error

What causes this issue?

A syntax error occurred in the IDoc '&V1&'. Since you have set the
syntax check to active in the partner profile, the IDoc was not sent.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

If you want to send this IDoc despite the syntax error, you can set the
status to 'Process despite syntax error' in the status record display
for this IDoc. This IDoc can then also be sent.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E0303 - IDoc '&' has syntax error ?

  The SAP error message E0303, which indicates that an IDoc has a syntax error, typically arises when there is an issue with the structure or format of the IDoc being processed. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Incorrect IDoc Structure: The IDoc may not conform to the expected structure defined in the IDoc type. This can happen if the segments or fields are missing, incorrectly formatted, or contain invalid data.
  Data Type Mismatch: If the data being sent in the IDoc does not match the expected data types (e.g., numeric fields containing alphabetic characters), it can lead to syntax errors.
  Segment Errors: If segments are incorrectly defined or if there are issues with segment delimiters, this can cause syntax errors.
  Version Mismatch: If there is a mismatch between the IDoc version being sent and the version expected by the receiving system, it can lead to syntax errors.
  Configuration Issues: Incorrect configuration in the IDoc processing settings or partner profiles can also lead to syntax errors.
  
  Solution:
  
  Validate IDoc Structure: Use transaction WE19 (IDoc Test Tool) to simulate the IDoc processing and validate the structure. This tool allows you to check the IDoc for errors before sending it.
  Check Data Types: Review the data being sent in the IDoc to ensure that it matches the expected data types for each field. Correct any discrepancies.
  Review IDoc Segments: Ensure that all required segments are present and correctly formatted. Check for any missing or extra segments.
  Use IDoc Monitoring: Utilize transaction WE02 or WE05 to monitor IDocs and check for any errors or warnings that may provide more context on the syntax error.
  Check Configuration: Review the configuration settings in transaction WE20 (Partner Profiles) to ensure that they are set up correctly for the IDoc processing.
  Consult Documentation: Refer to the IDoc documentation for the specific type you are working with to ensure compliance with the expected structure and data.
  
  Related Information:
  
  IDoc Types: Familiarize yourself with the specific IDoc type you are working with, as each type has its own structure and requirements.
  SAP Notes: Check SAP Notes for any known issues or updates related to the specific IDoc type or error message.
  Error Logs: Review the application logs (transaction SLG1) for additional error messages that may provide more context on the issue.
  Testing: After making corrections, test the IDoc again to ensure that the syntax error has been resolved.
  
  By following these steps, you should be able to identify and resolve the syntax error associated with the IDoc in SAP.