Hi, I have a very simple Marketo form where someone fills out (amongst other things) their address.
We use Address Line 1, 2 & 3 rather than the 'Address' field.
On the form, Add 1 & 2 are compulsory fields and 3 is not.
In the following example, someone fills out the form, who is already on the database and has changed address
PREVIOUS VALUES FILLED IN ON FORM
Address Line 1 1 The High Street 21 Harbour Road
Address Line 2 Botley Portsmouth
Address Line 3 Southampton *this field is left blank*
As Marketo will not overwrite actual data with a blank, how can I make sure that Address Line 3 does not stay "Southampton" and becomes a blank?