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CRM 2011 Plug-in consumes WCF service throws System.Net.WebPermission Error

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Hi

I have developed a plug-in which consumes WCF service on CRM 2011 on premises environment , and registered that as Sandbox mode

but I am getting the following error message while executing the plug-in.

“Request for the permission of type 'System.Net.WebPermission, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed”

So I registered again but the Isolation mode as “None” (instead of Sandbox) then its working

I know in sandbox mode the plugin doesn’t have much access on system files, Is there any way we can fix this error on Sandbox mode ? ,

Regards

MSK

Tuesday, December 17, 2013 10:32 AM

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Hello,

There is no way to fix it. Sandbox mode has limitations that are described here - http://msdn.microsoft.com/en-us/library/gg334752.aspx
Dynamics CRM MVP/ Technical Evangelist at SlickData LLC
My blog

Tuesday, December 17, 2013 11:01 AM

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Thanks Andrii ...
- Edited by mgsk Tuesday, December 17, 2013 2:33 PM
Tuesday, December 17, 2013 2:32 PM
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Hi,

I have a plugin that calls a WCF on CRM Online (can only run plugins in Sandbox mode) and it works.

Here you have a post on my blog with a code sample, i had the same issue as you and i resolve it by changing my transport credentials.
- Edited by tiagolvsantos Tuesday, December 17, 2013 2:44 PM
Tuesday, December 17, 2013 2:42 PM