How To Fix SRT_WSP388 - Multiple values for parameter "&1"

SAP Error Message - Details

• Message type: E = Error

• Message class: SRT_WSP - Messages for SRT WSP

• Message number: 388

• Message text: Multiple values for parameter "&1"

Self-Explanatory Message

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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 SRT_WSP388 - Multiple values for parameter "&1" ?

  The SAP error message SRT_WSP388, which states "Multiple values for parameter '&1'", typically occurs in the context of SAP Process Integration (PI) or SAP Process Orchestration (PO) when a web service is being called, and the system encounters multiple values for a parameter that is expected to have a single value.
  Cause:
  
  
  Multiple Values Passed: The most common cause of this error is that the web service call is receiving multiple values for a parameter that is defined to accept only a single value. This can happen if the client application sends an array or list of values instead of a single value.
  
  
  Mapping Issues: There may be issues in the mapping configuration where the source data is incorrectly mapped to the target structure, leading to multiple values being assigned to a single parameter.
  
  
  Service Definition: The web service definition (WSDL) may not be correctly aligned with the implementation, leading to discrepancies in expected input.
  
  
  Solution:
  
  
  Check Input Data: Review the input data being sent to the web service. Ensure that only a single value is being passed for the parameter in question. If multiple values are being sent, modify the client application to send only one value.
  
  
  Review Mapping: If you are using SAP PI/PO, check the message mapping to ensure that the source fields are correctly mapped to the target fields. Make sure that the mapping logic does not inadvertently create multiple values for a single parameter.
  
  
  Update Service Definition: If the service definition is incorrect, update the WSDL or the service interface to ensure that it correctly reflects the expected input parameters.
  
  
  Debugging: Use the SAP transaction codes such as SXMB_MONI or SXI_MONI to monitor the messages and identify where the error is occurring. This can help in pinpointing the exact cause of the issue.
  
  
  Consult Documentation: Review the documentation for the web service to ensure that you are adhering to the expected input formats and constraints.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Web Service Documentation: Review the documentation for the web service you are calling to understand the expected input parameters and their constraints.
  Community Forums: Consider searching or posting on SAP community forums for additional insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the cause of the SRT_WSP388 error and implement a solution to resolve it.