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Community site session details

Session Id : aoOP6efA1njZBa+S+JH0wX
Power Automate - Using Flows
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Cannot find the site address from Power Automate flow to an external site

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Posted on 10 Mar 2021 05:31:47 by

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 ...

PAF.png

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

PAF2.png 

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

please help me 

I have the same question (0)
  • Community Power Platform Member Profile Picture
    on 11 Mar 2021 at 02:36:38
    Re: Cannot find the site address from Power Automate flow to an external site

    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 

    thanhnguyen365_0-1615429810717.png

    And I think that the connections ars OK

    thanhnguyen365_1-1615429937155.png

    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 ?

    thanhnguyen365_2-1615430070869.png

     

     

     

  • Expiscornovus Profile Picture
    32,379 Most Valuable Professional on 10 Mar 2021 at 13:11:16
    Re: Cannot find the site address from Power Automate flow to an external site

    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).

     

    unauthorized_guestusers_restapi.png

     

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

     

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