Cannot find the site address from Power Automate flow to an external site

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Posted on by Community Power Pla... Microsoft Employee

Dear

I have a problem about connection from Flow to an external site when create a flow on Power automate

Situation:

- I'm using a domain account from my company to create a flow

- The flow will be use for another SharePoint Online site, so I need to select the Site address and List id , but I only can select the sites from my company, cannot find the site from my partner

Remark: My company & my partner using office 365

Example:

- Im is Thanh from ComanyA@.com

- A SharePoint Site from companyABC as http://ABCgroup.sharepoint.com/sites/external is already share access to me as Owner

When create flow in PA, there is error: unable to find the site address ...

When I check the connection, I only can see the site from companyA as below

I have checked the other posts, but I cannot create a connection to the external site

please help me

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Using flows

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Expiscornovus 33,869 Most Valuable Professional on at

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Hi @Anonymous,

Just to double check. You are trying to use user from Company A & Tenant A to access a SharePoint list (and update an item) in Tenant B. And that user is accessing the SharePoint list from tenant B with it's identity from Tenant A (so effectively being a guest user?), correct?

As far as I am aware this isn't possible with this SharePoint action. Just tested it and I am getting an Microsoft.IdentityModel.Tokens.AudienceUriValidationFailedException when I try to retrieve a SharePoint list from another tenant (I have full control on the whole site as a guest).

https://docs.microsoft.com/en-us/answers/questions/190632/guest-users-cannot-access-sharepoint-data-using-re.html

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Community Power Pla... Microsoft Employee on at

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Thanks for your info - @Expiscornovus
I'm not sure about the root cause come from Unauthorized access
When I access on SharePoint List -> Create a flow -> select any template (I choose Approval when new item is created) -> Access to Flow screen
And I think that the connections ars OK
And On the Flow app, if I not add more action and connect to SharePoint, my flow from template still working normally . I already test successfully.
So is there any limitation of my connection that I only can connect the first time to SharePoint in the flow ?

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