diff --git a/backend/src/schema/resolvers/helpers/events.js b/backend/src/schema/resolvers/helpers/events.js
index 41f8b0d74..bb573021f 100644
--- a/backend/src/schema/resolvers/helpers/events.js
+++ b/backend/src/schema/resolvers/helpers/events.js
@@ -1,29 +1,32 @@
 import { UserInputError } from 'apollo-server'
 
 export const validateEventParams = (params) => {
+  let locationName = null
   if (params.postType && params.postType === 'Event') {
     const { eventInput } = params
     validateEventDate(eventInput.eventStart)
     params.eventStart = eventInput.eventStart
 
-    validateEventEnd(eventInput.eventStart, eventInput.eventEnd)
-    params.eventEnd = eventInput.eventEnd
+    if (eventInput.eventEnd) {
+      validateEventEnd(eventInput.eventStart, eventInput.eventEnd)
+      params.eventEnd = eventInput.eventEnd
+    } else {
+      params.eventEnd = null 
+    }
 
     if (eventInput.eventLocationName && !eventInput.eventVenue) {
       throw new UserInputError('Event venue must be present if event location is given!')
     }
     params.eventVenue = eventInput.eventVenue
-    params.eventLocationName = eventInput.eventLocationName
+    params.eventLocationName = eventInput.eventLocationName && eventInput.eventLocationName.trim()
+    if (params.eventLocationName) {
+      locationName = params.eventLocationName
+    } else {
+      params.eventLocationName = null
+    }
     params.eventIsOnline = !!eventInput.eventIsOnline
   }
   delete params.eventInput
-  let locationName
-  if (params.eventLocationName.trim()) {
-    locationName = params.eventLocationName
-  } else {
-    params.eventLocationName = null
-    locationName = null
-  }
   return locationName
 }
 
@@ -38,7 +41,6 @@ const validateEventDate = (dateString) => {
 }
 
 const validateEventEnd = (start, end) => {
-  if (end === null) return
   const endDate = new Date(end)
   if (endDate.toString() === 'Invalid Date')
     throw new UserInputError('Event end date must be a valid date!')
diff --git a/webapp/components/ContributionForm/ContributionForm.vue b/webapp/components/ContributionForm/ContributionForm.vue
index b1b9b3935..6db9f7e02 100644
--- a/webapp/components/ContributionForm/ContributionForm.vue
+++ b/webapp/components/ContributionForm/ContributionForm.vue
@@ -307,6 +307,7 @@ export default {
           min: 3,
           max: 100,
           validator: (_, value = '') => {
+            if (this.formData.eventIsOnline) return []
             if (!value.trim()) {
               return [new Error(this.$t('common.validations.eventLocationNameNotEmpty'))]
             }
@@ -329,7 +330,7 @@ export default {
           eventVenue: this.formData.eventVenue,
           eventEnd: this.formData.eventEnd,
           eventIsOnline: this.formData.eventIsOnline,
-          eventLocationName: this.formData.eventLocationName,
+          eventLocationName: !this.formData.eventIsOnline ? this.formData.eventLocationName : null,
         }
       }
       return undefined
diff --git a/webapp/locales/de.json b/webapp/locales/de.json
index 5acab107e..1ce7d2f61 100644
--- a/webapp/locales/de.json
+++ b/webapp/locales/de.json
@@ -115,9 +115,9 @@
     "validations": {
       "categories": "es müssen eine bis drei Themen ausgewählt werden",
       "email": "muss eine gültige E-Mail-Adresse sein",
-      "eventLocationNameLength": "Mindestens {min} Maximal {max}",
+      "eventLocationNameLength": "Minimum {min}, Maximum {max} Zeichen",
       "eventLocationNameNotEmpty": "es dürfen nicht nur Freizeichen eingetragen werden",
-      "eventVenueLength": "Mindestens {min} Maximal {max}",
+      "eventVenueLength": "Minimum {min}, Maximum {max} Zeichen",
       "eventVenueNotEmpty": "es dürfen nicht nur Freizeichen eingetragen werden",
       "url": "muss eine gültige URL sein"
     },
diff --git a/webapp/locales/en.json b/webapp/locales/en.json
index 565f4b80a..f25cc8575 100644
--- a/webapp/locales/en.json
+++ b/webapp/locales/en.json
@@ -115,9 +115,9 @@
     "validations": {
       "categories": "at least one and at most three topics must be selected",
       "email": "must be a valid e-mail address",
-      "eventLocationNameLength": "minimal {min} maximal {max}",
+      "eventLocationNameLength": "minimum {min} or maximum {max} characters",
       "eventLocationNameNotEmpty": "only empty characters are not allowed",
-      "eventVenueLength": "minimal {min} maximal {max}",
+      "eventVenueLength": "minimum {min} or maximum {max} characters",
       "eventVenueNotEmpty": "only empty characters are not allowed",
       "url": "must be a valid URL"
     },