In the People Manager, search for the non-member.
In the Maintain Column, select More Options > Convert to Member.
The first name, last name and email address will already be filled in (if defined.) Specify the member number, member type, expiration date and fee. If the member type requires a chapter selection, select the appropriate chapter, then click OK.
The system will generate a welcome email to the new member as well as a pending transaction. He or she will be invited to log in to complete payment and activate the membership. All prior transactions are carried forward to the new account.