When you think of SaaS platforms you typically think of Salesforce, Shopify, and Atlassian. Thousands of companies have built integrations or entire products on top of those platforms. However, there's a new trend emerging in the platform space: Messaging apps. Companies are building integrations on top of both internal (ie. Slack, Microsoft teams) and external (ie. Intercom apps, Zendesk, Hubspot) messaging products because it's where people work and engage with customers.