Contact Us Client Success January 13, 2021 22:37 Updated Follow We're here to help! Our Client Success team is available on days when the U.S. stock market is trading between 9am - 4pm ET. The best way to reach us is here: You’re our priority, and we will email you back within one business day. Related articles Platform Costs Editing your M1 Portfolio Known Bugs or Issues Explanation of M1 Borrow Buy/Sell Order Functionality