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Creating a Xero Oauth2.0 Custom Connector

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Posted on by 365-Assist

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I am new to creating custom connectors and need some help creating a connector for Xero. I was able to connect using Postman but can't seem to get the settings correct on the Power Platform Custom Connector.

Can someone tell me what the parameters should be for the Security tab. No matter what I try will not connect to Xero.

When I try to Test the connection get error 500

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Connector development

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365-Assist 2,327 Moderator on at

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Figured it out. I needed to copy the Redirect URL from the Custom Connector to my XERO Redirect URL
Robinpemberton1 2 on at

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Did you use the offline scope? How did you get on with token refresh?
365-Assist 2,327 Moderator on at

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No I did not use the offline scope. I just added the Token url in the refresh Token and it seems to keep refreshing.
RobinPemberton 2 on at

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I could not keep the connection alive without the out the offline access scope. This is using the standard authorization flow. Just not sure what will happen after the 60 days. Think I will post this as another thread incase someone else has had this issue. Thanks for the reply btw.
s1hl3_ukuvuma 59 on at

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Can you please show me the set-up of your token URL?
365-Assist 2,327 Moderator on at

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@s1hl3_ukuvuma
AndrewH 10 on at

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How did you go with this? I am attempting the same, however it get the same error above that you did, I had entered the correct urls and have it setup exactly as you do. In power automate, when I view/edit the custom connector its missing the refresh URL each time - somethings still not right, and I must say, the docs at developer.xero.com are rather lacking, or hard to search through
365-Assist 2,327 Moderator on at

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As per my solution I was able to resolve my issue.

Yes the Refresh URL blanks every time you go back to edit. However I just use the Token URL as Refresh and all works.
AndrewH 10 on at

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Thank you - I was concerned there was some bug causing it to not work, and that was it.
I'm still having issues, I get a 401 unauthorized error from Xero and have it setup the same as you do - perhaps something isnt right in Xero 😞 I will keep persisting.
s1hl3_ukuvuma 59 on at

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Hi everyone,

I have used Power Automate and the HTTP action instead of the custom connector, please let me know if you are interested in that solution.