Decide what needs to change.
Sold out tonight is not the same as off the menu. Availability is for today; the menu holds the lasting name, description, price and food details. Depending on your role, you may be able to change one and not the other.
- Check which truck is selected before you edit.
- Something sold out? Use Availability. A lasting change? Use Menu.
- Wait until the save is confirmed, then open your public menu on a phone and check it.
If saving fails.
Your draft stays; read the message. If it is about permission, ask the owner or a manager. If someone else changed the dish meanwhile, look at their version first instead of saving your older draft over it.