How To Fix WS621 - Parameter does not contain correct data (internal error)

SAP Error Message - Details

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 621

• Message text: Parameter does not contain correct data (internal error)

What causes this issue?

The parameter "&V1&" was not assigned a value correctly when the method
"&V2&" of class "&V3&" was called.

System Response

INCLUDE ISR_STOP

How to fix this error?

INCLUDE ISR_SYSTEMFEHLER OBJECT DOKU ID TX

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 WS621 - Parameter does not contain correct data (internal error) ?

  SAP Error Message:
  
  WS621 Parameter does not contain correct data (internal error)
  
  Cause:
  The error message WS621 typically occurs when a function module or a program in SAP expects a parameter to contain data in a specific format or structure, but the actual data passed does not meet these expectations. This is often an internal consistency or data integrity issue within the SAP system, where the parameter content is either corrupted, incomplete, or incorrectly formatted.
  Common causes include:
  
  Incorrect or incomplete data passed to a function module or BAPI.
  Data structure mismatch between the caller and the called function.
  Internal inconsistencies in SAP memory or buffer areas.
  Custom code or enhancements passing wrong parameters.
  Issues during RFC (Remote Function Call) communication where parameters are not correctly serialized/deserialized.
  
  
  Solution:
  To resolve the WS621 error, consider the following steps:
  
  
  Check the Parameter Data:
  
  Identify which parameter is causing the issue.
  Use debugging tools (e.g., ABAP debugger) to inspect the parameter content at runtime.
  Verify that the data structure and content match the expected format.
  
  
  
  Review the Calling Program or Function Module:
  
  Ensure that the program or function module passing the parameter is correctly populating it.
  Check for any custom code or user exits/enhancements that might alter the parameter data incorrectly.
  
  
  
  Check for Notes and Patches:
  
  Search SAP Support Portal for OSS Notes related to WS621.
  Apply any relevant SAP Notes or patches that address this internal error.
  
  
  
  RFC and Interface Checks:
  
  If the error occurs during RFC calls, verify the interface definitions and parameter mappings.
  Ensure that the remote system has compatible versions and consistent data structures.
  
  
  
  Data Consistency Checks:
  
  Run consistency checks on related tables or data objects if applicable.
  Use transaction codes like SE37 to test function modules independently.
  
  
  
  SAP Support:
  
  If the issue persists and is reproducible, consider raising a support ticket with SAP, providing detailed logs, dumps, and steps to reproduce.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:  
  
  SE37 (Function Builder) to test function modules.  
  ST22 (Dump Analysis) to check for short dumps related to WS621.  
  SM21 (System Log) for system messages.
  
  
  
  Debugging:
  
  Use the ABAP debugger to trace the parameter values and identify where the data becomes invalid.
  
  
  SAP Notes:
  
  Search for "WS621" on the SAP ONE Support Launchpad for any specific notes or patches.
  
  
  Common Contexts:
  
  This error often appears in scenarios involving BAPIs, RFCs, or complex data transfers between SAP systems or between SAP and external systems.
  
  
  
  Summary:
  
  The WS621 error indicates that a parameter passed internally in SAP does not contain the expected data. The resolution involves verifying the parameter content, ensuring correct data structures, checking custom code, and applying relevant SAP Notes or patches. Debugging and detailed analysis of the parameter data at runtime are key to identifying the root cause.