Running the same account on two platforms at once

[Fairman]

Running the same account on two platforms at once

Plenty of traders keep a desktop terminal and a web or mobile terminal logged in at the same time. It feels like a sensible backup. It can also create confusing situations.

Orders placed on one show up on the other with a small delay. Modifications made on one may conflict with an expert advisor running on the other. Some brokers limit simultaneous sessions, and a new login can disconnect the old one without warning.

There is also the risk of double handling. A trader closes a position on the phone while the desktop script tries to modify it, resulting in an error or an unexpected reopening.

It helps to decide which terminal is primary and use the others only for monitoring or emergencies. Clear rules reduce confusion.

For automated strategies, giving each system its own magic number or separate account keeps the records clean and prevents one process from touching another's trades.

A habit that avoids confusion: use a single terminal for trading and a read-only investor password for any second device. The investor login can watch positions but cannot send orders, which removes the whole class of conflicts.

Has running two terminals ever caused a conflict or a surprise?