How To Fix FS_CORR_POST103 - Interface &1 has invalid interface type &2

SAP Error Message - Details

• Message type: E = Error

• Message class: FS_CORR_POST - Correspondence Postprocessing

• Message number: 103

• Message text: Interface &1 has invalid interface type &2

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FS_CORR_POST103 - Interface &1 has invalid interface type &2 ?

  The SAP error message FS_CORR_POST103 indicates that there is an issue with the interface type of a specific interface in the system. This error typically arises in the context of financial transactions or data postings, particularly when dealing with interfaces that are expected to conform to certain types or formats.
  Cause:
  The error message FS_CORR_POST103 is triggered when:
  
  An interface is being processed, but the system identifies that the interface type does not match the expected type.
  There may be a configuration issue where the interface type is incorrectly defined or not aligned with the expected parameters.
  The data being posted may not conform to the required structure or type, leading to a mismatch.
  
  Solution:
  To resolve the FS_CORR_POST103 error, you can follow these steps:
  
  
  Check Interface Configuration:
  
  Go to the configuration settings for the interface in question. Ensure that the interface type is correctly defined and matches the expected type for the transaction you are trying to process.
  
  
  
  Review Data Input:
  
  Verify the data being posted to the interface. Ensure that it adheres to the required format and structure. Look for any discrepancies in the data that could lead to an invalid interface type.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation or help resources related to the specific interface you are working with. This can provide insights into the expected interface types and configurations.
  
  
  
  Check for Updates or Notes:
  
  Look for any SAP Notes or updates that may address this specific error. Sometimes, SAP releases patches or notes that provide fixes or workarounds for known issues.
  
  
  
  Debugging:
  
  If you have access to debugging tools, you can trace the execution of the program to identify where the mismatch is occurring. This can help pinpoint the exact cause of the error.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for assistance. Provide them with detailed information about the error, including the context in which it occurs.
  
  
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may want to check transaction codes related to financial postings, such as FB01 (Post Document), FB50 (G/L Account Document), or others relevant to your specific scenario.
  Interface Types: Familiarize yourself with the different interface types used in your SAP system, as this can help in understanding the requirements and constraints associated with each type.
  Error Logs: Check the application logs (transaction SLG1) for additional details that may provide more context about the error.
  
  By following these steps, you should be able to identify and resolve the issue related to the FS_CORR_POST103 error message in SAP.