It would be nice if Koha could pro-rate the shipping when receiving. That way it splits up the shipping cost between all of the funds used in the basket and not just one fund selected when receiving the basket.
Giving this enhancement request a bump. 6 years later, this continues to be a feature libraries ask for.
Maybe it needs a more detailed behavior description. Does is need to list the used funds and allow setting percentages? Maybe it could allow choosing other funds?