Question : Update Control on Main Form from control on subform

I Have a database that is used to control jobs for service engineers.

It has a main form that displays the job requirement, including the equipment reference number, which is locked from the engineers. They have full access to the subform, where they complete the job detail.

It is quite common that our customers give us an incorrect equipment reference.

I want a field on the subform, where the engineers can enter the correct equipment number, which then updates the equipment reference on the Main form.

Answer : Update Control on Main Form from control on subform

Me.Parent.ControlName.Update