Download Microsoft Dynamics 365 (v8.x) Software Development Kit (SDK) from Official Microsoft Download Center

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Microsoft Dynamics 365 (v8.x) Software Development Kit (SDK)

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Contains the complete SDK for Microsoft Dynamics 365 (v8.x), Microsoft Dynamics CRM 2016 (on-premises), and the User Interface Integration (UII) SDK. You can download the latest Dynamics 365 (v9.x) SDK from here: https://docs.microsoft.com/dynamics365/customer-engagement/developer/download-dynamics-365-sdk-v9