Error in assigning ATP license - We're sorry, it looks like that email address is already in use.

[Marvin Oco]

Error in assigning ATP license - We're sorry, it looks like that email address is already in use.

Any known issue/fix?

[#2]

Hi @Marvin Oco,

See article

https://support.microsoft.com/en-gb/help/2428507/you-receive-the-following-error-message-in-the-offi...

Hoe that answers your question!

Best, Chris

[#3]

cause is 2 users in AD have identical email property