Technicians earn certifications that must be renewed periodically to ensure their skills remain up-to-date.
How can these certifications be managed on the Resource?

Universal Containers wants to limit the total cost of their Heroku usage while they're getting started on the platform. To accomplish this, they are considering replacing certain add-ons with comparable open-source components, but the development team doesn't want to lose access to certain features that the add-ons provide.
Which option should an Architect recommend for reducing add-on costs without affecting feature availability?

A Heroku application uses Heroku Connect to integrate with data from a Salesforce org. Since then, several fields from the Salesforce objects that were mapped using Connect have been removed. As a result, the development team will reload the mapping using Heroku Connect.
What is an implication of reloading the mapping?

A client has a web application that persists data to a local JSON file. They are migrating the application to Heroku. In order for the application to conform to the Twelve-Factor methodology, what changes should an Architect recommend?

Universal Containers wants to process mobile payments. How can this requirement be met?