Currently you have a limited selection of Merge Fields for the acknowledgements when a donation is made. This poses a legal issue when creating wordage for this acknowledgement. For example, if someone donates to a fund with benefits we have to have special wordage about the benefits that are provided.  We can not do this cleanly if we can only use 1 acknowledgement template for every donation that passes through that form.

Adding advanced merge fields would allow us to create more custom acknowledgements when a donation is made