How To Fix FB101 - Session &: First trans. does not begin with a header record (type 1)

SAP Error Message - Details

• Message type: E = Error

• Message class: FB - Batch Programs

• Message number: 101

• Message text: Session &: First trans. does not begin with a header record (type 1)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FB101 - Session &: First trans. does not begin with a header record (type 1) ?

  The SAP error message FB101 indicates that there is an issue with the format of the data being processed in a batch input session, specifically that the first transaction does not begin with a header record (type 1). This error typically occurs when you are trying to upload data into SAP using a batch input session, and the expected structure of the input data is not being followed.
  Cause:
  
  Incorrect File Format: The input file may not be formatted correctly. The first line of the file should contain a header record (type 1), which is necessary for the batch input session to process the data correctly.
  Missing Header Record: The header record (type 1) might be missing entirely from the input data.
  Corrupted Data: The data file may be corrupted or improperly generated, leading to the absence of the required header record.
  Incorrect Session Configuration: The session may not be configured correctly to expect the right type of records.
  
  Solution:
  
  Check Input File: Open the input file and ensure that the first line is a valid header record (type 1). The header record should conform to the expected format defined by SAP.
  Correct Formatting: If the header record is missing or incorrectly formatted, modify the input file to include a proper header record at the beginning.
  Validate Data: Ensure that the rest of the data follows the expected format and that there are no additional issues with the data structure.
  Recreate the Session: If the session was created incorrectly, consider recreating the batch input session after ensuring that the input file is correctly formatted.
  Use Transaction Code: If you are using a specific transaction code to create the session, ensure that you are using the correct one that matches the data you are trying to upload.
  
  Related Information:
  
  Batch Input Sessions: Batch input sessions are used in SAP to upload data in bulk. They require a specific format, including header records and data records.
  SAP Documentation: Refer to SAP documentation for detailed information on the structure of batch input files and the required record types.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM35 (to process batch input sessions) and SE38 (to run ABAP programs that may generate input files).
  Error Logs: Check the error logs for more details on the specific issue and any additional errors that may be present.
  
  By following these steps, you should be able to resolve the FB101 error and successfully process your batch input session.