diff --git a/src/pages/Customer/Card/CustomerFiscalData.vue b/src/pages/Customer/Card/CustomerFiscalData.vue
index 8f2c4efb0..97e6e362a 100644
--- a/src/pages/Customer/Card/CustomerFiscalData.vue
+++ b/src/pages/Customer/Card/CustomerFiscalData.vue
@@ -9,6 +9,7 @@ import VnRow from 'components/ui/VnRow.vue';
 import VnInput from 'src/components/common/VnInput.vue';
 import VnSelect from 'src/components/common/VnSelect.vue';
 import VnLocation from 'src/components/common/VnLocation.vue';
+import { getDifferences, getUpdatedValues } from 'src/filters';
 
 const { t } = useI18n();
 const route = useRoute();
@@ -23,6 +24,12 @@ function handleLocation(data, location) {
     data.provinceFk = provinceFk;
     data.countryFk = countryFk;
 }
+function onBeforeSave(formData, originalData) {
+    return getUpdatedValues(
+        Object.keys(getDifferences(formData, originalData)),
+        formData,
+    );
+}
 </script>
 
 <template>
@@ -36,6 +43,7 @@ function handleLocation(data, location) {
         :url-update="`Clients/${route.params.id}/updateFiscalData`"
         auto-load
         model="customer"
+        :mapper="onBeforeSave"
     >
         <template #form="{ data, validate }">
             <VnRow>