It is currently impossible to change fund IDs on funds by using import to update existing records. This is because Blackbaud decided that the fund ID would serve as the "import ID" even though there is a fund import ID on every fund record. If you would like to be able to update or add fund IDs through import, please vote for this idea!
We have the same problem. We have to manually update 865 funds because we've got a new set of accounts (merger). Ugh.
I need this on Appeal and Package records as well!
It is ridiculous that the Fund Import ID cannot be used in Import. Due to a merger and software conversion in Accounting, all our Fund IDs changed. That is almost 500 fund IDs we will have to manually change.