AppSource
Microsoft's online marketplace for business apps, extensions, and add-ons for Dynamics 365 and the Power Platform.
Microsoft AppSource is the marketplace for business applications, extensions, and add-ons that run on Microsoft cloud products including Dynamics 365, the Power Platform, Microsoft 365, and Azure. For Dynamics 365 customers it is the canonical place to discover and install ISV-built functionality — country-specific localizations for Business Central, industry verticals on top of CRM, connectors, and AI agents. Apps are published by Microsoft partners under transactable or contact-me models, and Business Central extensions in particular must be available on AppSource to be installed into a SaaS tenant.