How To Fix 6P604 - First record in sequential file & not a session record (type 0)

SAP Error Message - Details

• Message type: E = Error

• Message class: 6P - Messages for planned independent requirements (Appl.area 60)

• Message number: 604

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

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 6P604 - First record in sequential file & not a session record (type 0) ?

  The SAP error message 6P604 indicates that the first record in a sequential file is not a session record (type 0). This error typically occurs during the processing of batch input sessions, particularly when the system expects a specific format for the input data.
  Cause:
  
  Incorrect File Format: The file being processed does not start with a valid session record. The first record should be of type 0, which indicates the start of a session.
  Corrupted or Malformed Data: The data in the file may be corrupted or not structured correctly, leading to the system being unable to recognize the first record as a session record.
  Improper Data Extraction: If the data was extracted from another system or application, it may not have been formatted correctly for SAP's batch input processing.
  
  Solution:
  
  Check the Input File: Open the sequential file and verify that the first record is indeed a session record (type 0). The record should conform to the expected format for SAP batch input sessions.
  Recreate the Input File: If the file is corrupted or incorrectly formatted, recreate it ensuring that the first record is a valid session record.
  Use Correct Extraction Methods: If the data is being extracted from another system, ensure that the extraction method is compatible with SAP's batch input requirements.
  Review Batch Input Session Creation: If you are generating the batch input session programmatically, review the code to ensure that it correctly creates the session record as the first entry in the file.
  Consult Documentation: Refer to SAP documentation or guides on batch input processing to ensure compliance with the expected file structure.
  
  Related Information:
  
  Batch Input Sessions: These are used in SAP to automate data entry processes. Each session consists of a series of records, with the first record indicating the session's start.
  Record Types: In SAP batch input, different record types are used to denote various parts of the session. Type 0 is specifically for the session header.
  Transaction Codes: You may use transaction codes like SM35 to monitor and manage batch input sessions.
  
  If the issue persists after checking the above points, it may be beneficial to consult with your SAP Basis or technical team for further investigation.