How To Fix WS854 - Interface &1 was filled incorrectly by the calling application

SAP Error Message - Details

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 854

• Message text: Interface &1 was filled incorrectly by the calling application

What causes this issue?

Condition information for creating conditions was transferred in change
structure &1. This is not permitted since it generates incorrect
documents

System Response

The system cannot continue processing.

How to fix this error?

Check the interface parameters.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WS854 - Interface &1 was filled incorrectly by the calling application ?

  SAP Error Message:
  
  WS854 - Interface &1 was filled incorrectly by the calling application
  
  Cause:
  This error occurs when an interface structure or parameter passed from an external program or calling application to an SAP function module or BAPI is not filled correctly. The data provided does not meet the expected format, type, length, or mandatory fields required by the SAP interface.
  Common causes include:
  
  Missing mandatory fields in the interface structure.
  Incorrect data types or lengths.
  Incorrect sequence or structure of the data.
  Passing empty or null values where not allowed.
  Data inconsistencies or invalid values that SAP cannot process.
  
  
  Solution:
  
  
  Check the Interface Documentation:
  
  Review the SAP interface or BAPI documentation to understand the exact structure, mandatory fields, and data types expected.
  
  
  Validate Data Before Passing:
  
  Ensure the calling application populates all mandatory fields correctly and adheres to the expected data types and lengths.
  
  
  Debug the Interface Call:  
  
  Use transaction SE37 or SE80 to test the function module or BAPI with sample data.
  If the interface is called from an external system, enable debugging or logging to capture the exact data being passed.
  Check the interface structure in the ABAP code to identify which field(s) might be incorrectly filled.
  
  
  
  Check for Notes or Known Issues:
  
  Sometimes SAP Notes address specific interface issues. Search the SAP Support Portal for notes related to the interface or BAPI you are using.
  
  
  Correct the Calling Program:
  
  Modify the external program or middleware to ensure it fills the interface structure correctly.
  
  
  Use SAP Standard Tools:
  
  Use tools like BD87 (for IDocs) or SM58 (for transactional RFCs) to monitor and reprocess failed interface calls if applicable.
  
  
  
  Related Information:
  
  Message Class: WS (Workflow)
  This error is common in SAP Workflow interfaces or when calling SAP function modules/BAPIs from external systems.
  Check the interface parameters in the function module interface (SE37).
  If the interface is part of a workflow, verify the workflow container elements and their data types.
  For IDoc interfaces, ensure segments are correctly populated.
  SAP Notes and community forums often provide examples and solutions for specific interfaces.
  
  
  Summary:
  
  The WS854 error indicates that the interface data passed to SAP is not correctly filled. The solution involves verifying and correcting the data structure and content in the calling application to match SAP’s expected interface format. Debugging and consulting SAP documentation and notes are key steps to resolve this issue.