For SCA, copy the script tag that gets generated once you start creating a new service. Add the script tag in all the three SSP's (Shopping, Checkout and My Account - this will authenticate Loqate services in the website). In the address form template, create a new field on the top of the form with an id (searchaddress - this field can be matched to the "Search" field in the PCA fields). Then login back to the Loqate account, start the "Lanuch in-page setup". Match the form field ID's with PCA fields. Save the Service. Initially, do this for the forms which are not in-modal (Pop up forms - when editing address /creating addresses). Then try for the InModal forms.