Without the wedding licence the marriage cannot take place
The licence must be obtained from the office of, The Registrar of Births Deaths and Marriages. The licence is valid for three months, so don't get it too soon. As soon as you have the licence, hand it to the Priest that is named on it at least 2 to 3 weeks prior to the wedding date
If you are not a parishioner at St James you may be asked why you want to be married at the church..
You and your fiance will be expected to attend the church in the remaining weeks up till your wedding.