IF RequestParameter('UpdatePref') == "1" THEN

SET @CID = _SubscriberKey

SET @Interest1 = RequestParameter("Int_1")
SET @Interest2 = RequestParameter("Int_2")

UpsertDE("Preference_Centre_Interest", 1, "CNSMR_ID", @CID,
"Interest_1", @Interest1,
"Interest_2", @Interest2,
"UPDATE_DATE", NOW())

/* Redirect to thank you page */
  RedirectTo(CloudPagesURL(399))

ENDIF

<button type="submit" value="1" name="UpdatePref" style="color: #00305E; text-decoration: none; text-transform:uppercase; padding-top: 10px; padding-bottom: 10px; padding-left: 50px; padding-right: 50px; font-family: 'Roboto', Verdana, Arial, Helvetica, sans-serif; font-size:16px; line-height:24px;" valign="middle" bgcolor="#FFFFFF" class="bg-rollover"> <strong>SUBMIT</strong> </button>