Created attachment 11298 [details] not helpful single letter description For custom manual invoice categories there is the MANUAL_INV authorized value, but some of these types are hard coded with single letter descriptions which is not terribly useful. I vote that we move them all to the authorized value or at least update the descriptions to be more useful for people who install or upgrade Koha.
There was some work done on the templates to display nice descriptions for all hardcoded fine/fee types since this was filed. Hardcoding the hardcoded descriptions also makes them translatable, which is nice.