This also works with Power BI Pro licenses.
Also exist one more solution.
Office 365 Admin can add new guest user without turn on global option [Member can invite external users].
And then you can share content to this external user.
This is happening to me also. Was working 2 weeks ago and has now just stopped. According to this post it should work for everyone without any required work arounds: https://powerbi.microsoft.com/en-us/blog/power-bi-february-service-update/#externalSharing
I'm guessing there is a bug.
just had an incident raised by a user who has the same problem but when trying to email invite internal users? Any ideas?
This is the link where to set the settings.
I get a different behavior when I tried sharing from Internet Explorer rather than Google Chrome. From Google Chrome I get the same error message, regardless if I uncheck send e-mail option, but in Internet Explorer I get another error message (unchecked send e-mail), but report is shared.
This seem to be a JS error or something browser based.
So solution for me was to switch to IE. Haven't tried FF though, so might work differently there as well.
I have the same issue, "Failed to send email to invite users. Please try again later."
However I tried in tried in Edge, Chrome and IE all the same result.