Just note that if you haven't shopped for them, accept one, and cancel that shop, your cancellation rate will be 100%. You might never get a second job. The only shop I recall cancelling (other than weather-related) was an audit to a planogram; I attempted it, but after an hour and a half on-site, I hadn't covered 10% of the store, and I gave up. Before leaving, I asked the Manager why nothing in the store was "to the planogram", and he said the girls did such a great job with the displays, he let them do it however they wanted to. The store had hundreds of items, and not one was where it was supposed to be, and the requirement was to photograph every out-of-place item.
That was years ago.
Generally the guidelines are clear, and reports are straight-forward.