How To Fix MG004 - First record in sequential file & not a session record (type 0)

MG004 - Overview

• Message type: E = Error

• Message class: MG - Batch input: material master

• Message number: 004

• Message text: First record in sequential file & not a session record (type 0)

What causes this issue?

The first record in the sequential file must always be a session
record. Otherwise, no session can be created.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MG004 - First record in sequential file & not a session record (type 0) ?

  The SAP error message MG004, which states "First record in sequential file & not a session record (type 0)," typically occurs during the processing of a sequential file in the context of the SAP system, particularly when dealing with data uploads or batch input sessions.
  
  Cause:
  The error is generally caused by one of the following issues:
  
  
  Incorrect File Format: The file being processed does not conform to the expected format. The first record of the file should be a session record (type 0), but it is not.
  
  
  File Corruption: The file may be corrupted or improperly generated, leading to unexpected data in the first record.
  
  
  Incorrect Data Preparation: The data preparation process may have been flawed, resulting in a file that does not start with the required session record.
  
  
  Wrong File Path or Name: The file being referenced may not be the intended file, leading to the wrong data being processed.
  
  
  
  Solution:
  To resolve the MG004 error,