Below is my custom page for the WebService.
It is to set a value into the p_InvoiceNo field, then system will trigger the custom OnSearch() method to generate the data and insert into the TempBCPostSalesInvoice table(This is my custom table), then return the result data.
This page can work fine by calling the SOAP url like screenshot below.
Now I need to get this page's data by call the OData v4 url. How can I set the parameter into the p_InvoiceNo global variable? So that system can generate the data and return back.
I try with the code below, but it return a error message.

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