Problem
Customer has to select from a list of zones. Customer is having trouble placing an order because they have to select from a list of zip codes and when they select one zip codes of zones, they can't order.
Solution
You may have a zip code located in the system in more than one separate zones. Lets say you have one zip code entered in three zones. What this does is when someone enters an address in one of those zip codes the system presents them with a selection to make between the different Zones that the Zip Code exists in.
Since you have one and not all of those Zones applied to the restaurant, your customers only have access to certain restaurants or none. They will see the three options but won't know which to click to get service.
We recommend only listing zip codes in one active zone and making sure your zones are all applied out to your restaurants and setting up a max milage on the restaurant profile area to control the max distance travelled from the restaurnat to the consumer.
If you have further questions on this topic, you can sign up for a training session here: https://calendly.com/bigtreetraining
PRO TIP
When you are looking to split a zip code into two separate zones, you should use polygons in the zoning area to define the area that each zone covers, turn on geostrict mode and the software will automatically be able to see the customer's address is in a particular zone's polygon.