Once a Job is created, it is non-editable with an exception of few fields like "Job Title" and "Job Priority".

It
is now possible for the user to associate a property even after the new job
creation.
3. The “Choose Property” pop-up appears. Choose the property and click the “Select Property” button.
When you checkmark the “Use Property Address as Service Address” button, it will replace the existing Job’s service address with the property’s address.
The business can associate the property even after the Job creation. Hence, while handling the Job, the field technician can reach the exact property address whenever required.