Parent Flow.
In the Parent Flow Designer, to ensure that the Connection to the required Google Form is set up, go into the Trigger Settings then select the required Form.
Exit out of the Trigger.
Go To ‘Control Flow’ Actions in the Toolbox and drag an ‘If Condition’ Action on to the flow.
Click the gear icon and go to the ‘Settings’ field and configure the ‘True’ Path required for your process. (Note – On creation, you are always configuring for the True Branch of an ‘If Condition’ Action. If the conditions do not meet requirements for the True path, the answer will follow the ‘False’ branch.)
Go to the 'Integration Actions' in the Toolbox and select the ‘HTTP Request’ Action and drag over to the False branch.
Save and publish the Parent Flow.
Child Flow.
The Child Flow will need to be created via a HTTP API Trigger at the initial ‘Create’ stage.
Click on the trigger icon on the designer to begin configuration.
Go to the ‘Invocation’ tab. The information to ask the Parent Flow to call the Child Flow is included in this tab.
Note - On creation of the HTTP API Trigger, there will be no information in the Invocation tab. This information will populate when the Flow is published.
The HTTP Method field will state ‘POST’.
Copy the ‘Without HTTP Header URL’ and the ‘Auth Header’ URL to your clipboard.
Return to the Parent Flow and click on the gear icon in the 'HTTP Request' action to configure the Settings.
Paste the ‘Without HTTP Header URL’ in the API URL field.
Paste the ‘Auth Header’ in the Headers field.
Go to the ‘HTTP Request Method’ drop down box and select ‘Get’.
Publish the Flow.