Hi I need some help figuring out if it is possible to create a formula.

I'm trying to link information from different pages in a spreadsheet that
contain id's for people and prices they are paying for some items my church
is selling. We have a main worksheet that lists their names and the ids and
then we have another worksheet that lists all the items they can buy with
it's price.

Is it possible to create a formula in the name page that says "If you find
id #1 in column A, then sum the prices from column D". The ids will be spread
out throughout column A so we need a formula to locate each instance of the
id and then grab the price listed each time in column D and sum those prices
up.

Is this possible and if yes can someone tell me how to do it.

Thanks