Hi,
We’re having issues with installing HubSpot Sales Office 365 add-in. First, we tried to deploy the add-in centrally. We got an email notification saying that “Hubspot Sales was successfully deployed”, but we weren’t able to actually use the extension in Outlook:
or
We removed all the configurations from Office and started again. We tried all the different versions of the app and redeployed it into Office 365 and it still won’t authenticate.
We also tried a different browser, but we got stuck in this “login loop” a lot of people complain about:
We’ve been through quite a lot on Hubspot’s knowledgebase and other help sites and none of the steps seem to help. We wouldn’t be doing the SSO option, but from what we know it theoretically should work with the non-SSO option. Every other app we deploy using office365 add-ins works fine, so we know it’s not AD configuration.
Then we uninstalled the app from the O365 and tried to install the add-in (Office 365 add-in - the one for Outlook on the web). We installed it successfully:
then we clicked the blue button, opened Outlook Web, and faced the same error again:
And when we got back to the Hubspot Sales page, reloaded it, and the button we clicked a minute before became grey:
- Currently, we’re on Hubspot’s Free plan.
- We use Outlook on the web (so it’s basically Outlook )
- We do have our emails connected to Hubspot
- We don’t use Office 365 from GoDaddy, it’s direct with Microsoft
- Our current license is “Microsoft 365 Business Standard”
- We’re tried to install the add-in both on PC and Mac
- We’ve tried different browsers (Safari, Firefox, Microsoft Edge) as well as using private windows, deleting cookies and browser history etc.
- We do have all the necessary permissions from your email administrators to use third-party add-ins in our inboxes.
It looks like we’ve taken all the troubleshooting steps mentioned on the Internet and especially here, but nothing is working (in fact, I don’t really understand why it’s not working).
I would appreciate any help.
Thanks in advance.







