While calling a child powerautomate via parent powerautomate through http request an error occurs such as HTTP request failed "The OAuth authorization scheme is required. Please add authentication scheme and try again."
Maybe there is a way to call a child flow from an HTTP request, but I am not aware of a way. You need to use the action Run a child flow:
To run child flows requires an environment with Dataverse enabled and both flows need to be in a solution. Note, the child flow does not need to be in the same solution as the parent, but it needs to be in the same environment.
Instead of asking how to call a child flow, did you mean to ask how to trigger a flow that is configured with When an HTTP request is received? I suppose you could consider this a child flow, but it is not technically in Power Automate.
Thank you for your reply! To ensure a great experience for everyone, your content is awaiting approval by our Community Managers. Please check back later.