You can link the value of a document property, a custom property, or a configuration-specific property to a text entity in a sketch. You can also link a property to rows of a table or BOM. If the value of the property changes, the linked text changes automatically.
To link sketch text to a property:
Open the 
Sketch Text PropertyManager and click 
Link to Property 
.   
- 
To link to  an existing property, select the property from  the pull-down list.
- If you select a date property, you can choose Long Date or Short Date format and whether to show the time of day (select Show Time) or just the date (clear Show Time). 
- To create a new property, click File Properties. 
The linked text is the value assigned to the property to which it is linked.