visit_start_time_gmt is a field that should be captured automatically, but if you're not seeing it in your data feeds, check the job set up to make sure that column has been included. It's possible that whoever set up the job just didn't select that field. 

I've used data feeds for a long time, and I've seen this more than once. Adobe does reuse visitor/visit IDs. They don't do it within the same year, but in different years it is possible to have the same ID be reused for a new customer. When concatenating the visitor/visit IDs, make sure you include ...

Just want to call out first, my suggestion for the second piece is "product does not equal X", as in the same product as the first condition. Having different products in the equals and not equals conditions would give very different results than having the same product in both. @Jennifer_Dungan  wr...

I see that you have another question about segments, I'll answer this one too because it seems to be a bit different than your other question. For this particular case you want an order where there are two products. You would need a hit level segment with three conditions, one insisting an order exi...

There's essentially two ways to make a segment that doesn't include a particular product, and depending on what you want it to return will decide which method you use. I'll start by saying, you have to identify a specific product (or products) in the segment.   First, if you want to return a hit tha...

When you're calculating unique visitor/visit/hit IDs, it's a good idea to also bring in "first_hit_time_gmt", reason being that sometimes Adobe reuses values in post_visid_high and post_visid_low. It doesn't happen often, but I have seen it happen. It's possible that might be your 3 visitors.   Like...

This is normal. I think at my last organization we had a difference of about 9-10%. Something to keep in mind, from the Adobe end, is that it's based on web data. So, if your order call doesn't fire for some reason (like if customers are clicking through pages/links too fast), then that order will b...

I'm getting this too!  @Jennifer_Dungan and I were talking about this a couple days ago. I've put in a bug ticket with support. It was a bit frustrating, they said that "this week 52 weeks ago" is working and asked if that was different than "this week last year." I think I convinced them that this ...

This really comes down to what your business question is. Do you want to know how many times the software was downloaded? Or do you want to know how many different people downloaded the software? Both are valid questions, but ultimately which one is the best approach will depend on your business.  F...

I'm not sure I 100% understand what you're asking. Are you trying to identify the ID's that saw page 1 and not page 2? You could do that with a segment. A visit level sequential segment is what you would want. First condition would be Page 1, and then you would want an exclude container for Page 2. ...