SOAP Integration in Flow Designer using MID Server and Basic Authentication

learner625 — Fri, 03 Jul 2026 12:52:33 GMT

Hi Everyone,

I am working on a SOAP integration in ServiceNow using Flow Designer. The external SOAP service uses Basic Authentication, and the requests need to be sent through a MID Server.

So far, I have:

Created the SOAP Message from the WSDL.
Configured Basic Authentication on the SOAP Message.

Now I want to invoke this SOAP Message from Flow Designer using the SOAP action. However, the SOAP step asks for the following:

Connection
Connection Alias

I have a few questions:

Do I need to create a Connection and Connection & Credential Alias separately, even though Basic Authentication is already configured on the SOAP Message?
How do I associate the SOAP Message with the Connection/Connection Alias?
How can I pass dynamic values from the Flow into the SOAP function input parameters?
Is there any end-to-end documentation or example that explains the recommended approach for SOAP integrations using Flow Designer, Basic Authentication, and a MID Server?

Any guidance or documentation would be greatly appreciated.

Thanks!

Re: SOAP Integration in Flow Designer using MID Server and Basic Authentication

Tanushree Maiti — Fri, 03 Jul 2026 13:13:22 GMT

Hi @learner625

Yes , you have to create the Connection & Connection alias . Instruction - you will get from these reference links.

Refer:

KB0852539 Configure SOAP Step in IntegrationHub

Understanding Connection & Credential Alias

https://www.servicenow.com/community/developer-forum/how-to-use-soap-step-in-flow-designer-correctly/td-p/3463714

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SOAP Integration in Flow Designer using MID Server and Basic Authentication

Re: SOAP Integration in Flow Designer using MID Server and Basic Authentication