There is two main products in the Azure offering for hosting microservices: Azure Functions and Logic Apps. The former is a code-first integration service designed for developers, the latter is a configutation-first integration service which makes it easy to build processes and workflows and integrate with various SaaS and enterprise applications.
One of the key question when developing Logic Apps is how to create an atomic re-deployable package that you will use to deploy your worfklow to another tenant. A typical use-case, is when you have distinct tenants for development and production. You need not only to deploy the workflow itself but also the API connections that you have created during the development.