How To Fix WPRO_XI_PROXY108 - &1 can only be &2 or &3

SAP Error Message - Details

• Message type: E = Error

• Message class: WPRO_XI_PROXY - Messages Service Processing Retail Event

• Message number: 108

• Message text: &1 can only be &2 or &3

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WPRO_XI_PROXY108 - &1 can only be &2 or &3 ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message: WPRO_XI_PROXY108 &1 can only be &2 or &3
  
  1. Cause
  This error typically occurs in the context of SAP Process Integration (PI) or SAP Process Orchestration (PO) when dealing with proxy communication. The message indicates that a certain parameter or value (&1) is expected to be either one of two specific values (&2 or &3), but the actual value provided does not match either of these.
  In other words, the system is validating an input or configuration parameter and finds that the value is invalid because it is not one of the allowed options.
  Common scenarios include:
  
  Incorrect configuration of the communication channel or adapter.
  Wrong parameter value in the proxy or integration scenario.
  Mismatch in the expected message type or interface parameter.
  Programming error in the proxy code or mapping where a parameter is set incorrectly.
  
  
  2. Solution
  To resolve this error, follow these steps:
  
  
  Identify the parameter (&1): Check the full error message in the system log or trace to find out which parameter or field is causing the issue.
  
  
  Check allowed values (&2 and &3): Understand what the two allowed values are. These are usually documented in the SAP help or can be inferred from the context (e.g., "Synchronous" or "Asynchronous", "Inbound" or "Outbound", "XML" or "IDoc", etc.).
  
  
  Correct the value: Adjust the configuration or code so that the parameter value matches one of the allowed values.
  
  
  Verify communication channel settings: If this is related to a communication channel, ensure that the channel type, adapter type, and message protocol are correctly set.
  
  
  Check proxy generation and interface: If the error occurs during proxy generation or runtime, verify that the proxy interface and message types are consistent.
  
  
  Re-deploy or re-generate proxies if necessary.
  
  
  Test the scenario after correction to confirm the error is resolved.
  
  
  
  3. Related Information
  
  
  SAP Notes and Documentation: Search for the exact error message in the SAP Support Portal or SAP Notes for any specific patches or known issues.
  
  
  Transaction Codes:
  
  SXMB_MONI - Message Monitoring in PI/PO.
  SPROXY - Proxy generation and configuration.
  SXMB_IFR - Integration Repository.
  
  
  
  Common Contexts:
  
  Proxy communication in SAP PI/PO.
  Adapter configuration in Integration Directory.
  Message mapping and interface definitions.
  
  
  
  Example: If the error message is like:
  WPRO_XI_PROXY108 "Direction" can only be "INBOUND" or "OUTBOUND"
  Then the parameter Direction was set to an invalid value. Correcting it to either INBOUND or OUTBOUND will fix the issue.
  
  
  
  If you provide the exact full error message with the substituted parameters, I can help you pinpoint the exact cause and solution more precisely.