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What are Custom Connectors in Power Platform?

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Power Platform includes hundreds of pre-built connectors for popular applications like Microsoft 365, Salesforce, and SQL Server. However, many organizations also use proprietary or industry-specific systems that are not supported by default. In such cases, Custom Connectors enable developers to expose external REST APIs so they can be easily used within Power Apps, Power Automate, and Azure Logic Apps. Understanding Custom Connectors is essential for building enterprise-grade integrations and extending the capabilities of Microsoft Power Platform.
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Custom Connectors in Microsoft Power Platform allow organizations to connect Power Apps, Power Automate, and Power Virtual Agents to external systems or APIs that are not available through Microsoft's built-in connectors. They provide a secure and reusable way to integrate custom applications, third-party services, and enterprise systems. A Custom Connector is typically created using a REST API definition, OpenAPI (Swagger) specification, or Postman collection. It defines authentication methods, operations, request parameters, and response structures, allowing makers and developers to use external services as if they were native Power Platform connectors. Custom Connectors are commonly used to integrate internal business applications, payment gateways, ERP systems, AI services, and legacy applications, enabling seamless business process automation and enterprise integrations.

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