So to answer my own previous Q about the API and IFTTT integrations, in case anyone else was wondering…
So if you use IFTTT to log any transactions to a Google Doc / elsewhere, it seems any transfer to a pot is not recorded anywhere.
Transactions that are rounded in the app feed, show up as their actual amount when IFTTT’d, but there is no associated transaction
API / YNAB
Within the API (and my use to sync the data to YNAB), the transaction pre-rounded is recorded as is, and you get a second transaction for the transfer to the Pot.
That’s probably as you’d expect - but FYI if anyone uses any of these things.