Please choose a tenant name for Office 365. This is normally your own domain name without any dots. i.e. instead of 'mydomain.co.uk' you would type 'mydomaincouk'. Or you can use another unique word or phrase so long as it has no spaces or special characters and hasnt already been taken.

Please tick to indicate you accept the Microsoft Cloud Agreement. https://docs.microsoft.com/en-us/partner-center/agreements