The Integration Account is part of the Logic Apps Enterprise Integration Pack (EIP) and is a secure, manageable and scalable container for the integration artifacts that you create. You can store maps, schemas, partners, agreements and certificates in your Integration Account once and reference them across all your logic apps making the creation of B2B processes with logic apps quick and easy.

Key features of Logic apps:

• Easy to use design tools - Create logic apps from a web browser or Visual Studio 2015. Start with a trigger, from a simple schedule or respond to a tweet about your company. Then orchestrate any number of actions using the rich gallery of connectors.
• Compose SaaS easily - Even composition tasks that are easy to describe are difficult to implement in code. Logic Apps make it a cinch to connect disparate systems. Want to create a task in CRM based on activity on your Facebook or Twitter accounts? Want to connect your cloud marketing solution to your on-premises billing system? Logic apps are the fastest, most reliable way to deliver solutions to these problems.
• Extensibility baked in - Don't see the connector you need? Logic Apps are part of the App Service suite and designed to work with API apps; you can easily create your own API app to use as a connector. Build a new app just for you, or share and monetize in the marketplace.
• Real integration horsepower - Start easy and grow as you need. The Enterprise Integration Pack features include the B2B, EDI and XML capabilities you need for handling complex business to business workloads. Additionally, Logic Apps can easily leverage the power of BizTalk Server, Microsoft's industry leading integration solution to enable integration professionals to build the solutions they need.