A random unique number allocate by sustem, but you may choose your own favorite number here

Account name for login (Default to your OuBB number)
Length is limited to 4-16 characters, only a-z0-9 and - is allowed.

Chinese characters is allowed here.

Select "Personal" for community, "Enterprise" for business

Gender is now allowed to change after register.

A working Email address should be provided correctly here. Check 'Validate It' to recieve validation Email, and continue.

Any character is allowed here, except spaces. Length limited to 6-15 characters. Case sense.

Retype your password again to make sure it's the right password.

Input the numbers you see in the picture. Click it or press F5 if it's unreadable.

Input the account of whom introduce you to this registration. Account or OuBB number accept, not the Nickname. Optional.