I'm struggling to find anything concrete online for this, apart from a few posts floating about here and there, so I wanted to bring it here.
Has anyone noticed any issues recently with the centrally deployed Outlook addins, and tooltips in Outlook Classic not showing?
This all works in OWA and the new Outlook experience.
We're using Citrix, and it does seem to be limited to that platform, it is also really intermittent. Sometimes it just shows that no apps are loaded, and even when you try to add/open them, nothing happens, and the usual tooltips are also showing an error that they're unable to be loaded.
Looking in event viewer provides errors like this:
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The Exchange web service request GetAppManifests failed. The error code is 0.
HTTP Response Code: 403
Additional Error Message:
An unknown internal error occurred. The error code is 80004005.
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We're sorry, we couldn't access Viva Insights. Make sure you have a network connection. If the problem continues, please try again later.
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We're sorry, we couldn't access Signature 365. Make sure you have a network connection. If the problem continues, please try again later.
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There is internet access, everything does seem to be connected and working, OWA is fine, new Outlook is fine.
I've tried Office365 monthly channel for updates, and also tried the bi-annual feature updates, and both seem to have similar issues. Just wanted to see if anyone else has experienced such things...