# External login providers on Litium 7

**URL:** <https://forum.litium.com/t/external-login-providers-on-litium-7/1023>\
**Category:** Questions\
**Tags:** litium-7\
**Created:** [August 13, 2019, 6:58am UTC](https://forum.litium.com/t/external-login-providers-on-litium-7/1023 "2019-08-13T06:58:43Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![jinesh](https://avatars.discourse-cdn.com/v4/letter/j/3e96dc/32.png) [@jinesh](https://forum.litium.com/u/jinesh)\
**Post date:** [August 13, 2019, 6:58am UTC](https://forum.litium.com/t/external-login-providers-on-litium-7/1023/1 "2019-08-13T06:58:43Z")

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I have implemented external login providers on Litium 7, using the below link.  
[https://docs.litium.com/documentation/architecture/external-login-providers](https://docs.litium.com/documentation/architecture/external-login-providers)

Now the issue is I’m getting an exception while adding a product to cart and the exception is  
System.NotSupportedException: Cant store OrderCarrier into users session

What might be I’m missing here?

Litium version: _7_

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**Author:** ![anusha.ganegoda](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.litium.com/anusha.ganegoda/32/58_2.png) [@anusha.ganegoda](https://forum.litium.com/u/anusha.ganegoda)\
**Post date:** [August 13, 2019, 9:12am UTC](https://forum.litium.com/t/external-login-providers-on-litium-7/1023/2 "2019-08-13T09:12:42Z")

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The exception seems to be not related to the external login provider. If you comment out your code change, does the exception goes away?

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**Author:** ![jinesh](https://avatars.discourse-cdn.com/v4/letter/j/3e96dc/32.png) [@jinesh](https://forum.litium.com/u/jinesh)\
**Post date:** [August 13, 2019, 9:48am UTC](https://forum.litium.com/t/external-login-providers-on-litium-7/1023/3 "2019-08-13T09:48:43Z")

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Yes. Its working fine when I commented out whole SsoSetup or the line app.UseExternalSignInCookie();

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**Author:** ![system](https://canada1.discourse-cdn.com/flex030/uploads/litium/original/1X/12eddac3b8b661de1db86af10ac8151b571e6fb9.png) [@system](https://forum.litium.com/u/system)\
**Post date:** [September 10, 2019, 10:01am UTC](https://forum.litium.com/t/external-login-providers-on-litium-7/1023/4 "2019-09-10T10:01:23Z")

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