Why can't I map back to property?

When creating a defined property, you might want to map it to an existing property from an integration instead of assigning it a static value.

However, in some cases, this isn’t possible. Here's an example:

Why does "Deal Amount" appear in the first dropdown, but not in the second one?

Defined properties can only map to text fields. If a property is a number, boolean, or date field, it won’t appear as an option in the second dropdown.