One of the worst sales reps I had would come in every few months and tell me that this went up almost 30 cents a lb more, or that had gone up by 20% and that the other thing was discontinued. I looked him straight in the eye and asked him, when he drives his car, if he put out his signal light before making a turn, during, or after making the turn.
He looked at me kinda funny and asked what this had to do with the price of canned tomatoes.
I told him if I knew when he did that this or that would be going up in the next few weeks that I could stock up and buffer the costs a bit, if that was discontinued I could take a week or so to find a suitable replacement without scrambling.
He never "got it". Passing information on like that to the customer was worse than insider trading as far as he was concerned.....
I doubt if online ordering gives you any advance information