Validations
Certain properties of different tag types require input to be of a certain type of format. The Details panel will highlight when you have incorrectly input a value that is not acceptable for a given property. Some properties may become invalid based on other properties. This is indicated by a red shaded and underlined cell color, and a tooltip appears when you hover over the invalid property.
Generally, you cannot leave a property in an invalid state when leaving the Details panel to select another tag. You will be prompted to revert or stay and fix the invalid property states. An example message is shown in the following graphic.