How To Fix OO173 - Type &1 of parameter &2 of method &3 is not supported remotely

SAP Error Message - Details

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 173

• Message text: Type &1 of parameter &2 of method &3 is not supported remotely

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 OO173 - Type &1 of parameter &2 of method &3 is not supported remotely ?

  The SAP error message OO173 indicates that there is an issue with the type of a parameter being used in a method call that is not supported for remote function calls (RFC). This typically occurs when you are trying to call a method in a remote-enabled class or interface, and one of the parameters is of a type that cannot be serialized or transmitted over the network.
  Cause:
  The error can be caused by several factors:
  
  Unsupported Data Types: The parameter type is not supported for remote calls. Common unsupported types include complex structures, internal tables, or certain reference types.
  Method Definition: The method may be defined in such a way that it expects a parameter type that is not RFC-compatible.
  Incorrect Usage: The method might be called incorrectly, or the parameters passed do not match the expected types.
  
  Solution:
  To resolve the OO173 error, you can take the following steps:
  
  
  Check Parameter Types: Review the method signature and ensure that all parameters are of types that are supported for RFC. Supported types typically include:
  
  Simple data types (e.g., CHAR, INT, FLOAT)
  Basic structures (that are RFC-compatible)
  Simple tables (not complex nested structures)
  
  
  
  Modify Method Definition: If you have control over the method, consider changing the parameter types to RFC-compatible types. For example, if you are using a complex structure, you might need to break it down into simpler components.
  
  
  Use RFC-Compatible Structures: If you need to pass complex data, consider using RFC-compatible structures or tables that can be serialized properly.
  
  
  Check for Updates: Ensure that your SAP system is up to date, as there may be patches or updates that address issues related to RFC calls.
  
  
  Testing: After making changes, test the method call again to ensure that the error is resolved.
  
  
  Related Information:
  
  RFC (Remote Function Call): A protocol used in SAP to enable communication between different SAP systems or between SAP and non-SAP systems.
  Data Types in SAP: Familiarize yourself with the different data types in ABAP and their compatibility with RFC. The SAP documentation provides detailed information on which types are supported.
  SAP Notes: Check SAP Notes for any known issues or additional guidance related to the OO173 error message.
  
  If the problem persists after following these steps, consider reaching out to SAP support or consulting the SAP community for further assistance.