Great question. I didn't get a popup at all. But all orders stopped. And I had to a web interface to actually see to popup and agree.?
More interesting question is: how one could learn in advance about those? I.e. I didn't get any emails from IB that I have x days to review and agree/disagree. The message just popped up. And this is not somethin an algo trading can deal with.? It is actually second time in 2 years where IB stops my trading with no warning (last time it was brexit, and because of jurisdiction change a company needed a LEI number. took 4 days to get. But ib knew about that 6 months in advance. Could have put it in the migration plan.). Either I am (we are) missing some info or IB just not particularly careful with user experience. I.e. I bet those legal changes were known in advance and they could have warned people and gave them some time in advance to react.??
