diff --git a/webapp/components/Registration/RegistrationSlideEmail.vue b/webapp/components/Registration/RegistrationSlideEmail.vue
index 4c190f64e..35e80bf4c 100644
--- a/webapp/components/Registration/RegistrationSlideEmail.vue
+++ b/webapp/components/Registration/RegistrationSlideEmail.vue
@@ -180,6 +180,15 @@ export default {
     setButtonValues() {
       this.sliderData.setSliderValuesCallback(this.validInput, this.buttonValues())
     },
+    isVariablesRequested(variables) {
+      return (
+        this.sliderData.sliders[this.sliderIndex].data.request &&
+        this.sliderData.sliders[this.sliderIndex].data.request.variables &&
+        this.sliderData.sliders[this.sliderIndex].data.request.variables.email === variables.email
+        // Wolle &&
+        // this.sliderData.sliders[this.sliderIndex].data.request.variables.token === variables.code
+      )
+    },
     async onNextClick() {
       const mutation = this.token ? SignupByInvitationMutation : SignupMutation
       const { token } = this
@@ -190,24 +199,12 @@ export default {
         return true
       }
 
-      if (
-        this.sendEmailAgain ||
-        !this.sliderData.sliders[this.sliderIndex].data.request ||
-        (this.sliderData.sliders[this.sliderIndex].data.request &&
-          (!this.sliderData.sliders[this.sliderIndex].data.request.variables ||
-            (this.sliderData.sliders[this.sliderIndex].data.request.variables &&
-              !this.sliderData.sliders[this.sliderIndex].data.request.variables === variables)))
-      ) {
-        this.sliderData.setSliderValuesCallback(
-          this.sliderData.sliders[this.sliderIndex].validated,
-          { sliderData: { request: { variables }, response: null } },
-        )
-
+      if (this.sendEmailAgain || !this.isVariablesRequested(variables)) {
         try {
           const response = await this.$apollo.mutate({ mutation, variables }) // e-mail is send in emailMiddleware of backend
           this.sliderData.setSliderValuesCallback(
             this.sliderData.sliders[this.sliderIndex].validated,
-            { sliderData: { response: response.data } },
+            { sliderData: { request: { variables }, response: response.data } },
           )
 
           if (this.sliderData.sliders[this.sliderIndex].data.response) {
diff --git a/webapp/components/Registration/RegistrationSlideInvite.vue b/webapp/components/Registration/RegistrationSlideInvite.vue
index d3879ac4d..478a351bc 100644
--- a/webapp/components/Registration/RegistrationSlideInvite.vue
+++ b/webapp/components/Registration/RegistrationSlideInvite.vue
@@ -76,12 +76,14 @@ export default {
     async sendValidation() {
       const { inviteCode } = this.formData
 
+      this.sliderData.setSliderValuesCallback(null, { collectedInputData: { inviteCode } })
+
       let dbValidated = false
       if (this.validInput) {
         await this.handleSubmitVerify()
         dbValidated = this.sliderData.sliders[this.sliderIndex].data.response.isValidInviteCode
       }
-      this.sliderData.setSliderValuesCallback(dbValidated, { collectedInputData: { inviteCode } })
+      this.sliderData.setSliderValuesCallback(dbValidated)
     },
     async handleInput() {
       this.sendValidation()
@@ -89,28 +91,26 @@ export default {
     async handleInputValid() {
       this.sendValidation()
     },
+    isVariablesRequested(variables) {
+      return (
+        this.sliderData.sliders[this.sliderIndex].data.request &&
+        this.sliderData.sliders[this.sliderIndex].data.request.variables &&
+        this.sliderData.sliders[this.sliderIndex].data.request.variables.code === variables.code
+      )
+    },
     async handleSubmitVerify() {
-      const { inviteCode } = this.formData
+      const { inviteCode } = this.sliderData.collectedInputData
       const variables = { code: inviteCode }
 
-      if (
-        !this.sliderData.sliders[this.sliderIndex].data.request ||
-        (this.sliderData.sliders[this.sliderIndex].data.request &&
-          (!this.sliderData.sliders[this.sliderIndex].data.request.variables ||
-            (this.sliderData.sliders[this.sliderIndex].data.request.variables &&
-              !this.sliderData.sliders[this.sliderIndex].data.request.variables === variables)))
-      ) {
-        this.sliderData.setSliderValuesCallback(
-          this.sliderData.sliders[this.sliderIndex].validated,
-          { sliderData: { request: { variables }, response: null } },
-        )
-
+      if (!this.isVariablesRequested(variables)) {
         try {
           const response = await this.$apollo.query({ query: isValidInviteCodeQuery, variables })
-          this.sliderData.setSliderValuesCallback(
-            this.sliderData.sliders[this.sliderIndex].validated,
-            { sliderData: { response: response.data } },
-          )
+          this.sliderData.setSliderValuesCallback(null, {
+            sliderData: {
+              request: { variables },
+              response: response.data,
+            },
+          })
 
           if (
             this.sliderData.sliders[this.sliderIndex].data.response &&
diff --git a/webapp/components/Registration/RegistrationSlideNonce.vue b/webapp/components/Registration/RegistrationSlideNonce.vue
index bb01263bd..0be02e922 100644
--- a/webapp/components/Registration/RegistrationSlideNonce.vue
+++ b/webapp/components/Registration/RegistrationSlideNonce.vue
@@ -27,6 +27,13 @@
 </template>
 
 <script>
+import gql from 'graphql-tag'
+
+export const verifyNonceQuery = gql`
+  query($email: String!, $nonce: String!) {
+    VerifyNonce(email: $email, nonce: $nonce)
+  }
+`
 export default {
   name: 'RegistrationSlideNonce',
   props: {
@@ -64,26 +71,25 @@ export default {
     })
   },
   computed: {
+    sliderIndex() {
+      return this.sliderData.sliderIndex // to have a shorter notation
+    },
     validInput() {
       return this.formData.nonce.length === 5
     },
   },
   methods: {
-    sendValidation() {
+    async sendValidation() {
       const { nonce } = this.formData
 
-      // Wolle shall the nonce be validated in the database?
-      // let dbValidated = false
-      // if (this.validInput) {
-      //   await this.handleSubmitVerify()
-      //   dbValidated = this.sliderData.sliders[this.sliderIndex].data.response.isValidInviteCode
-      // }
-      // this.sliderData.setSliderValuesCallback(dbValidated, {
-      this.sliderData.setSliderValuesCallback(this.validInput, {
-        collectedInputData: {
-          nonce,
-        },
-      })
+      this.sliderData.setSliderValuesCallback(null, { collectedInputData: { nonce } })
+
+      let dbValidated = false
+      if (this.validInput) {
+        await this.handleSubmitVerify()
+        dbValidated = this.sliderData.sliders[this.sliderIndex].data.response.VerifyNonce
+      }
+      this.sliderData.setSliderValuesCallback(dbValidated)
     },
     async handleInput() {
       this.sendValidation()
@@ -91,7 +97,46 @@ export default {
     async handleInputValid() {
       this.sendValidation()
     },
-    handleSubmitVerify() {},
+    isVariablesRequested(variables) {
+      return (
+        this.sliderData.sliders[this.sliderIndex].data.request &&
+        this.sliderData.sliders[this.sliderIndex].data.request.variables &&
+        this.sliderData.sliders[this.sliderIndex].data.request.variables.email ===
+          variables.email &&
+        this.sliderData.sliders[this.sliderIndex].data.request.variables.nonce === variables.nonce
+      )
+    },
+    async handleSubmitVerify() {
+      const { email, nonce } = this.sliderData.collectedInputData
+      const variables = { email, nonce }
+
+      if (!this.isVariablesRequested(variables)) {
+        try {
+          const response = await this.$apollo.query({ query: verifyNonceQuery, variables })
+          this.sliderData.setSliderValuesCallback(
+            this.sliderData.sliders[this.sliderIndex].validated,
+            { sliderData: { request: { variables }, response: response.data } },
+          )
+
+          if (
+            this.sliderData.sliders[this.sliderIndex].data.response &&
+            this.sliderData.sliders[this.sliderIndex].data.response.VerifyNonce
+          ) {
+            this.$toast.success(
+              this.$t('components.registration.email-nonce.form.success', { email, nonce }),
+            )
+          }
+        } catch (err) {
+          this.sliderData.setSliderValuesCallback(
+            this.sliderData.sliders[this.sliderIndex].validated,
+            { sliderData: { response: { VerifyNonce: false } } },
+          )
+
+          const { message } = err
+          this.$toast.error(message)
+        }
+      }
+    },
     onNextClick() {
       return true
     },
diff --git a/webapp/components/Registration/RegistrationSlider.story.js b/webapp/components/Registration/RegistrationSlider.story.js
index a801000eb..a8d145ef2 100644
--- a/webapp/components/Registration/RegistrationSlider.story.js
+++ b/webapp/components/Registration/RegistrationSlider.story.js
@@ -26,6 +26,9 @@ const plugins = [
         if (JSON.stringify(data).includes('isValidInviteCode')) {
           return { data: { isValidInviteCode: true } }
         }
+        if (JSON.stringify(data).includes('VerifyNonce')) {
+          return { data: { VerifyNonce: true } }
+        }
         throw new Error(`Query name not found!`)
       },
     }
diff --git a/webapp/components/Registration/RegistrationSlider.vue b/webapp/components/Registration/RegistrationSlider.vue
index c10cc93e6..0656788b5 100644
--- a/webapp/components/Registration/RegistrationSlider.vue
+++ b/webapp/components/Registration/RegistrationSlider.vue
@@ -118,7 +118,7 @@ export default {
         name: 'enter-nonce',
         title: 'E-Mail Confirmation', // Wolle
         validated: false,
-        data: { request: null, response: null },
+        data: { request: null, response: { VerifyNonce: false } },
         button: {
           title: 'Confirm', // Wolle
           icon: 'arrow-right',
@@ -198,11 +198,15 @@ export default {
     },
   },
   methods: {
-    setSliderValuesCallback(isValid, { collectedInputData, sliderData, sliderSettings }) {
+    setSliderValuesCallback(
+      isValid = null,
+      { collectedInputData, sliderData, sliderSettings } = {},
+    ) {
       // all changes of 'this.sliders' has to be filled in from the top to be spread to the component slider and all slider components in the slot
 
-      this.sliderData.sliders[this.sliderIndex].validated = isValid
-
+      if (isValid !== null) {
+        this.sliderData.sliders[this.sliderIndex].validated = isValid
+      }
       if (collectedInputData) {
         this.sliderData.collectedInputData = {
           ...this.sliderData.collectedInputData,
diff --git a/webapp/locales/de.json b/webapp/locales/de.json
index e02e4f6b0..0165ce558 100644
--- a/webapp/locales/de.json
+++ b/webapp/locales/de.json
@@ -167,6 +167,11 @@
           "success": "Verifikations-E-Mail gesendet an <b>{email}</b>!"
         }
       },
+      "email-nonce": {
+        "form": {
+          "success": "Gültiger Bestätigungs-Code <b>{nonce}</b> für E-Mail <b>{email}</b>!"
+        }
+      },
       "invite-code": {
         "form": {
           "success": "Gültiger Einladungs-Code <b>{inviteCode}</b>!"
diff --git a/webapp/locales/en.json b/webapp/locales/en.json
index e195f542e..4fd7c2934 100644
--- a/webapp/locales/en.json
+++ b/webapp/locales/en.json
@@ -167,6 +167,11 @@
           "success": "Verification e-mail send to <b>{email}</b>!"
         }
       },
+      "email-nonce": {
+        "form": {
+          "success": "Valid verification code <b>{nonce}</b> for e-mail <b>{email}</b>!"
+        }
+      },
       "invite-code": {
         "form": {
           "success": "Valid invite code <b>{inviteCode}</b>!"