This Custom Attribute will be applied to these selected Entity Types. Note that removing a Custom Attribute from an Entity Type will delete the data attached to that Custom Attribute.

If an attribute is required, entities in the related entity types must have this attribute with a non-empty value. Attaching a required attribute to an already populated entity type will mean that all entities in the type will need to be updated to have the attribute.

If an attribute is pinned to the entity in card view then users can see the attribute value at a glance.