A company has a meeting with a third party that wants to begin submitting leads...

The steps that the Adobe Marketo Engage Architect should take to make sure that the REST API is set up correctly are to create API User Role, create a new API User, create new Launchpoint Service, and run a Call test with Identity and Endpoint. These steps will allow the Architect to configure and test the REST API integration with Marketo Engage. Creating API User Role will enable the Architect to define the permissions and access level for the API User. Creating a new API User will enable the Architect to generate a unique Client ID and Client Secret for authentication. Creating new Launchpoint Service will enable the Architect to register and manage the third-party service in Marketo Engage. Running a Call test with Identity and Endpoint will enable the Architect to verify that the API calls are working properly and that leads can be submitted through various channels.

References: https://developers.marketo.com/rest-api/ https://docs.marketo.com/display/public/DOCS/Create+an+API+Only+User+Role https://docs.marketo.com/display/public/DOCS/Create+a+Custom+Service https://docs.marketo.com/display/public/DOCS/Webhooks