Request for the permission of type 'System.Security.Permissions.SecurityPermission Failed- Dynamics 365 Unified Interface Online

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Posted on by Srikanth Reddy

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Hello,

I am getting the below error message when I try to call the external API from D365 Online Custom workflow activity.

System.Security.SecurityException
HResult=0x8013150A
Message=Request for the permission of type 'System.Security.Permissions.SecurityPermission, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.

throwing this error at yellow marked line.

Any help or suggestions will highly be appreciated

Thanks

Srikanth

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RE: Request for the permission of type 'System.Security.Permissions.SecurityPermission Failed- Dynamics 365 Unified Interface Online

Hi Srikanth,

As following link said, you can refer it:

And if you've got CRM Online, then the normal solution is to offload the processing to an environment that you have more control over. The most common option is to offload the processing to Azure, using the Azure Service Bus or Azure Event Hub. The alternative, new to CRM 9, is to send the data to a WebHook, which can be hosted wherever you like.

David Jennaway - Microsoft Dynamics CRM: Plugins in the sandbox, and why you don't get System.Security.Permissions.SecurityPermission (mscrmuk.blogspot.com)

Regards,

Leah Ju

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