How To Fix /AIF/ERROR_HANDLING090 - Interface &1/&2/&3 contains non-unique column sequence number

SAP Error Message - Details

• Message type: E = Error

• Message class: /AIF/ERROR_HANDLING -

• Message number: 090

• Message text: Interface &1/&2/&3 contains non-unique column sequence number

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /AIF/ERROR_HANDLING090 - Interface &1/&2/&3 contains non-unique column sequence number ?

  The SAP error message /AIF/ERROR_HANDLING090 indicates that there is a problem with the configuration of an interface in the Application Interface Framework (AIF). Specifically, it states that the interface contains non-unique column sequence numbers, which means that there are multiple columns defined with the same sequence number in the interface mapping.
  Cause:
  
  Duplicate Sequence Numbers: The most common cause of this error is that during the configuration of the interface, two or more columns have been assigned the same sequence number. This can happen if the interface mapping was manually edited or if there was an error during the import of the interface definition.
  Incorrect Mapping: If the mapping of the source and target structures is not done correctly, it can lead to this issue.
  Changes in Structure: If the underlying data structure has changed (e.g., new fields added or existing fields modified) without updating the interface mapping accordingly, it can lead to non-unique sequence numbers.
  
  Solution:
  
  Check Interface Configuration: Go to the AIF interface configuration and check the column sequence numbers for the interface in question. Ensure that each column has a unique sequence number.
  Edit Sequence Numbers: If you find duplicate sequence numbers, edit them to ensure that each column has a unique number. This can usually be done in the AIF configuration transaction (e.g., /AIF/IF_CONFIG).
  Validate Mapping: After making changes, validate the mapping to ensure that it is correct and that there are no other issues.
  Test the Interface: Once the changes are made, test the interface to ensure that it is functioning correctly without any errors.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like /AIF/IF_CONFIG for interface configuration and /AIF/IF_MONITOR for monitoring the interfaces.
  Documentation: Refer to the SAP Help Portal or the AIF documentation for detailed information on configuring interfaces and handling errors.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance on resolving it.
  
  By following these steps, you should be able to resolve the error and ensure that your AIF interface is correctly configured.