Any printer doing any variable data work or some form of catalogue must have a mail merge or data merge function of some kind. Forms of work include place cards, price tags, mailings, invitations, white label items, catalogues, price lists etc etc. We use this function every day without fail, without it we cannot change from our current provider. Affinity photo is fab so we would really love use affinity publisher. Is the 1st release going to have a mail merge function? If not is it in the pipe line for future release? Good luck on the 1st release.