diff --git a/ayanova/src/api/gzvalidate.js b/ayanova/src/api/gzvalidate.js
index 17041b5d..a912ed65 100644
--- a/ayanova/src/api/gzvalidate.js
+++ b/ayanova/src/api/gzvalidate.js
@@ -25,7 +25,7 @@ export default {
     return err;
   },
   MaxLength(ltkey, value, max) {
-    if (value === undefined || value === null) {
+    if (_.isEmpty(value)) {
       return false;
     }
 
@@ -45,11 +45,10 @@ export default {
     return this.MaxLength(ltkey, value, 255);
   },
   After(startDate, endDate) {
-    if (startDate === undefined || startDate === null) {
+    if (_.isEmpty(startDate)) {
       return false;
     }
-
-    if (endDate === undefined || endDate === null) {
+    if (_.isEmpty(endDate)) {
       return false;
     }