Zoho Mail App for Android - Invalid Password

Zoho Mail App for Android - Invalid Password

I've installed Zoho Mail for my android however I am getting an invalid password error. I've tried the TFA with no luck. I am using my company mail address, the one registered as my standard login, I've tried both the TFA generated password and my standard password with the same error. 

Please advise as to what I may have overlooked. 

Thanks, 

Brad