diff --git a/src/layouts/service-zip/service-zip.vue b/src/layouts/service-zip/service-zip.vue
index 717880553..ae7609da8 100644
--- a/src/layouts/service-zip/service-zip.vue
+++ b/src/layouts/service-zip/service-zip.vue
@@ -202,11 +202,18 @@ export default {
         async forwardButtonAction() {
             const zipCodeData = await this.getZipCodeData(this.serviceZipCode);
 
-            if (vinPagesMixin.methods.isPhoneNumber(this.emailOrSms)) {
-                const phone = this.emailOrSms.replace(/[()]/g, "");
-                await this.dispatchStoreAction(storeActions.SAVE_PHONE_NUMBER, phone, false);
-            } else {
-                await this.dispatchStoreAction(storeActions.SAVE_EMAIL, this.emailOrSms, false);
+            // if no value due to field being optional, blank both phone and email address
+            if (!this.emailOrSms) {
+                await this.dispatchStoreAction(storeActions.SAVE_PHONE_NUMBER, "", false);
+                await this.dispatchStoreAction(storeActions.SAVE_EMAIL, "", false);
+            }
+            else { 
+                if (vinPagesMixin.methods.isPhoneNumber(this.emailOrSms)) {
+                    const phone = this.emailOrSms.replace(/[()]/g, "");
+                    await this.dispatchStoreAction(storeActions.SAVE_PHONE_NUMBER, phone, false);
+                } else {
+                    await this.dispatchStoreAction(storeActions.SAVE_EMAIL, this.emailOrSms, false);
+                }
             }
 
             await this.dispatchStoreAction(