If shoppers can see the assignment on their board, and schedulers can see the assignment on the shopper's board, the shopper is eligible. If we don't see certain assignments, we are not eligible, for reasons generally unknown. Not only do shoppers not know rotations, schedulers have told me they are not privvy to them either. Not long ago, I was called to do a fast casual that I had shopped the prior week. I mentioned that and asked the scheduler what the rotation was. He told me it was seven days. I don't think he had any idea, he just wanted to book the shop. I passed on his offer, and use my own judgment. Overshopping a location can result in undesirable consequences.