Am I allowed to do this?

Hi. Am I allowed to edit my forum to include my own shop? i.e add items for sale and have a payment portal links for these items. I know how this can be done but i wondered if i was allowed to use my forum for this purpose as well as have it as an active forum. I have an external well known website but I would wish to have the lot in one place as my members are always asking me about the stock i sell and they keep having to go back and forwards from one to the other.
Did not want to upset anyone by doing it without checking first if this was allowed.
Thanks.

It is allowed.

brilliant thanks. Makes my life so much easier now.

As long as you're not selling illegal material (including porn), then you're all good.