Missing Contacts - This domain does not have all the required contacts setup

Missing Nexus Data - .us domains require some extra data to satisfy the residency requirements.

Invalid Period - .UK domains can only be registered for period of 2 years.

No Legal Type - .UK domains require you to set the registrant legal type.

Missing "Registered For" field - .UK domains require you to specifically set the registrants name.

No Comany Number - .UK domains must have a company number when the registrant is a UK company or Partnership.

No Legal Type - .CA domains require you to set the registrant legal type.