Is it possible to create a Flow listener and call it from a Boomi integration process? I've tried using basic auth with the Boomi HTTP Connector as well as Postman but get 405s for all request types.
I think with how the boomi flow listener works, the data structure we send out from Boomi Flow is sent in an encoded json-like format and the connector receives this, decodes the JSON style format into the request profile looking format you see via the listener itself and goes from there. This is all speculation on my side but if this is in fact the case, the listener hypothetically should not be able to trigger from a boomi http client connector and would instead respond with a method not found / Error 405 you see now.
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