Let's take this to extreme. Commandment "Thou shalt not kill", would it be ok to let automatons kill instead of you and this would not be considered sin? (playing devils advocate)
Building (and activating) a machine that's designed to kill, obviously violates the "thou shalt not kill" and makes you an attempted murderer the moment you activate it. But the actual moment of killing? You're literally not doing that (you could be sleeping or have forgotten about the machine, at the moment it first kills).
Similarly, building the e-commerce machine obviously can't be done on the sabbath, but if it's already running then you're not actually working.
For example, suppose you push a rock off a huge cliff. If the rock tumbles for a full week after you push it, were you pushing it off a cliff for the full week (including the sabbath)? Or did you only push it the one time on a tuesday?
Similarly, building the e-commerce machine obviously can't be done on the sabbath, but if it's already running then you're not actually working.
For example, suppose you push a rock off a huge cliff. If the rock tumbles for a full week after you push it, were you pushing it off a cliff for the full week (including the sabbath)? Or did you only push it the one time on a tuesday?