How To Fix >2537 - Call error: Attempt to post two lots in the same internal session

SAP Error Message - Details

• Message type: E = Error

• Message class: >2 -

• Message number: 537

• Message text: Call error: Attempt to post two lots in the same internal session

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message >2537 - Call error: Attempt to post two lots in the same internal session ?

  The SAP error message 2537 ("Call error: Attempt to post two lots in the same internal session") typically occurs in the context of inventory management or goods movement processes. This error indicates that there is an attempt to post multiple lots in a single session, which is not allowed in SAP.
  Cause:
  
  Multiple Lot Numbers: The error usually arises when a user tries to post goods movements for multiple lot numbers in a single transaction or session.
  Session Management: SAP has internal session management that prevents the posting of multiple lots simultaneously to maintain data integrity.
  Configuration Issues: There may be configuration settings in the system that restrict the posting of multiple lots.
  
  Solution:
  
  Single Lot Posting: Ensure that you are posting only one lot at a time. If you need to post multiple lots, do so in separate transactions.
  Check Transaction Type: Verify the transaction type you are using. Some transaction types may have restrictions on posting multiple lots.
  Review Batch Management Settings: If you are using batch management, check the settings related to batch and lot handling in your configuration.
  Use Batch Input Sessions: If you are using batch input sessions, ensure that each session is designed to handle only one lot at a time.
  Consult Documentation: Review SAP documentation or help files related to the specific transaction you are using to understand any limitations or requirements.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error. SAP frequently updates its knowledge base with solutions for common errors.
  Transaction Codes: Familiarize yourself with relevant transaction codes (e.g., MIGO for goods movements) and their specific functionalities.
  User Authorization: Ensure that the user has the necessary authorizations to perform the transactions related to lot postings.
  Testing in Development: If possible, replicate the issue in a development or test environment to better understand the cause and test potential solutions without affecting production data.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a technical consultant who can analyze the specific configuration and transaction details in your SAP environment.