How To Fix E0742 - IDoc transfer: Data flow not correct

SAP Error Message - Details

• Message type: E = Error

• Message class: E0 - SAP EDI messages

• Message number: 742

• Message text: IDoc transfer: Data flow not correct

What causes this issue?

During the CPI-C connection to the R/2 system, IDoc data was expected.
However, the data received is incorrect. The first letter should be
'D' (for 'data').
The first letter of the data stream received is &v1&.

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

Data stream: &v2&

System Response

How to fix this error?

If the error keeps occurring, activate the CPI-C trace functionality.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E0742 - IDoc transfer: Data flow not correct ?

  The SAP error message E0742, which indicates "IDoc transfer: Data flow not correct," typically arises during the processing of IDocs (Intermediate Documents) in SAP systems. This error suggests that there is an issue with the data flow of the IDoc, which can be caused by various factors. Below are some common causes, potential solutions, and related information for this error:
  Causes:
  
  Incorrect IDoc Configuration: The IDoc type or message type may not be correctly configured in the system.
  Inconsistent Data: The data being sent in the IDoc may not conform to the expected structure or may contain invalid values.
  Partner Profile Issues: The partner profile settings for the sender or receiver may not be correctly defined, leading to communication issues.
  Mapping Errors: If there is a mapping process involved (e.g., using SAP PI/PO), errors in the mapping can lead to incorrect data flow.
  Status of IDoc: The IDoc may be in an incorrect status (e.g., not processed, error status) that prevents it from being transferred correctly.
  Network Issues: Communication problems between systems can also lead to this error.
  
  Solutions:
  
  
  Check IDoc Configuration:
  
  Verify that the IDoc type and message type are correctly configured in the system.
  Use transaction WE30 to check the IDoc type definition.
  
  
  
  Validate Data:
  
  Review the data being sent in the IDoc for any inconsistencies or invalid values.
  Use transaction WE02 to analyze the IDoc and check for errors in the data segments.
  
  
  
  Review Partner Profiles:
  
  Check the partner profiles using transaction WE20 to ensure that the settings for the sender and receiver are correct.
  Ensure that the correct message types and IDoc types are assigned.
  
  
  
  Check Mapping:
  
  If using SAP PI/PO, review the mapping configuration to ensure that the data is being transformed correctly.
  Test the mapping independently to identify any issues.
  
  
  
  Monitor IDoc Status:
  
  Use transaction WE05 to monitor the status of IDocs and identify any that are in error status.
  Reprocess any IDocs that are in error status after correcting the underlying issue.
  
  
  
  Network and Connectivity:
  
  Ensure that there are no network issues affecting the communication between systems.
  Check for any firewall or connectivity issues that may be blocking the IDoc transfer.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  WE02: Display IDoc
  WE05: IDoc List
  WE20: Partner Profiles
  WE30: IDoc Types
  
  
  IDoc Status Codes: Familiarize yourself with IDoc status codes to understand the processing state of IDocs.
  SAP Notes: Check SAP Notes for any known issues or patches related to IDoc processing.
  
  By following these steps, you should be able to identify and resolve the cause of the E0742 error in your SAP system. If the issue persists, consider reaching out to SAP support for further assistance.