If you are working on your shop now, however, it can make sense that only your customers or other external visitors are shown the maintenance mode. As the shop owner, you may not want to see the shop in maintenance mode because you want to make changes to the shop, for example, which you then want to see in the frontend. To do this, you can enter your IP address in the "Whitelist for IP addresses" field. All users whose IP addresses are in this field can then view the shop normally even though it is in maintenance mode.
If you do not know your IP address, simply click in the field and your IP address will be displayed in the dropdown that appears (with the note "You" after it). Click on your IP address and it should be added to the field. You should then discuss your settings by clicking on the blue “Save” button in the top right corner.