How To Fix WS_TOOL207 - Parameter &1 of function &2 was changed incompatibly

SAP Error Message - Details

• Message type: E = Error

• Message class: WS_TOOL - Message Class for Web Services and Virtual Endpoints

• Message number: 207

• Message text: Parameter &1 of function &2 was changed incompatibly

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WS_TOOL207 - Parameter &1 of function &2 was changed incompatibly ?

  The SAP error message:
  WS_TOOL207 Parameter &1 of function &2 was changed incompatibly
  typically occurs during function module changes or transport imports when a parameter of a function module has been modified in a way that is not compatible with the existing interface or usage.
  
  Cause
  
  The error indicates that a parameter (e.g., importing, exporting, changing, or tables parameter) of a function module has been changed incompatibly.
  Incompatible changes include:
  
  Changing the parameter type (data type, length, structure).
  Changing the parameter direction (e.g., from importing to exporting).
  Removing or renaming parameters.
  Changing the parameter attributes in a way that breaks compatibility.
  
  
  Such changes can cause inconsistencies in programs or other function modules that call this function module.
  This message is often triggered during:
  
  Transport import of function module changes.
  Activation or adjustment of function modules.
  When the function module is part of a remote-enabled function module (RFC) interface and the interface has changed incompatibly.
  
  
  
  
  Solution
  
  
  Review the Changes:
  
  Check the exact parameter (&1) and function module (&2) mentioned in the message.
  Use transaction SE37 or SE80 to inspect the function module interface.
  Compare the current version with the previous version (e.g., via version management or transport logs).
  
  
  
  Restore Compatibility:
  
  If possible, revert the parameter changes to maintain compatibility.
  Avoid changing parameter types or directions if the function module is used by other programs or remote calls.
  
  
  
  Adjust Dependent Objects:
  
  If the change is necessary, update all dependent programs, function modules, and interfaces that use this function module.
  Ensure that all calling programs are adjusted to the new interface.
  
  
  
  Use Function Module Versioning:
  
  If incompatible changes are unavoidable, consider creating a new function module version or a new function module with a different name.
  This avoids breaking existing consumers.
  
  
  
  Transport and Activation:
  
  After correcting the interface, re-import the transport and activate the function module.
  Check for any further inconsistencies.
  
  
  
  Check RFC Interfaces:
  
  If the function module is remote-enabled (RFC), ensure that the interface changes are synchronized on all connected systems.
  Use transaction SM59 to check RFC destinations and test connections.
  
  
  
  
  Related Information
  
  Transaction SE37: Function Builder to display and change function modules.
  Transaction SE80: Object Navigator for function modules and other development objects.
  Version Management: Use the version management feature in SE37 or SE80 to compare changes.
  Transport Logs: Check transport logs (STMS) for details on changes and imports.
  RFC Interface Changes: Changing RFC-enabled function modules requires careful coordination across systems.
  SAP Note or documentation related to function module interface changes and compatibility.
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WS_TOOL207 Parameter &1 of function &2 was changed incompatibly
  
  
  Cause
  Incompatible change to a function module parameter (type, direction, removal, etc.)
  
  
  Solution
  Review and revert changes or update all dependent objects; consider versioning or new FM
  
  
  Tools
  SE37, SE80, STMS, SM59
  
  
  Notes
  RFC interface changes require synchronization across systems
  
  
  
  
  If you provide the exact parameter and function module names, I can help you with more specific guidance.