I too have been trying for two weeks to get Venmo to automatically download transactions. Mostly it returns Error 102, try in a few hours. Once it downloaded a single transaction.

I know you can download a CSV of the transactions. When doing this I disconnected the Venmo account so I could process the CSV BUT, A BIG BUT...after processing the CSV transactions, QBO automtically without asking reconnected the Venmo account (the little lightning bold shows up in the COA).

I have reported this bug to QBO as it applies to other bank accounts as well.

When bank accounts are not connected their panel does not show up in the Banking Tab, but after downloading transactions from other bank accounts the bank is magically reconnected.

All this leads to duplicated transactions which are a mess to clean up.

This all needs to be cleaned up as it causes a lot of unnecessary work in QBO, and keeping track of duplicated transactions.