Dynamics Community Forum Thread Details

SSL ERROR

After updating to macOS 26.1 the AL Language extension cannot connect to Business Central API (api.businesscentral.dynamics.com) with error "The SSL connection could not be established, see inner exception. The remote certificate was rejected by the provided RemoteCertificateValidationCallback." This issue started immediately after macOS update - the same configuration worked perfectly before. AAD authentication completes successfully, but metadata download fails every time. System-level curl can access the API without issues, proving the certificate is valid. I've tried disabling SSL verification in VS Code settings, adding .NET environment variables, clearing cache, and reinstalling the extension - nothing works. This is blocking all development work on Business Central for macOS 26.1

users. Request IDs: 2719cf0b-7574-4884-b654-5d8ad0afd7b7, 3c54267d-b5f6-4e5a-96c1-451cde806337. Please provide an urgent fix or workaround.
Environment: macOS 26.1, Business Central Sandbox (Cloud), Tenant: 3bbd610b-95e4-47b3-8b48-4f7caf717bc3

Categories:

Dynamics 365 Business Central

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