Each step after the trigger in a workflow is an action. Connectors can also be used as actions within your Logic Apps. Each action typically maps to an operation on your connector or custom API Apps that are defined in the Swagger metadata. Actions can have dependency, and they can be executed based on the condition such as success or failure of the previous action.
You can use the action for variety of operations such as to look up customer data from a SQL database when processing an order or may be to write, update, or delete data in a destination table.
Actions can be categorized as Standard Action and Collection Action.
There are six valid types of standard actions, each with unique behavior.
HTTP: This action calls an HTTP web endpoint.
ApiConnection: This action has behavior similar to the HTTP action; however, it takes advantage of the Microsoft-managed APIs. Here is a Dropbox action to create a file in the specified folder.
ApiConnectionWebhook...