diff --git a/apps/web/server/routers/viewer.tsx b/apps/web/server/routers/viewer.tsx
index 0cb50c4309..035f329c78 100644
--- a/apps/web/server/routers/viewer.tsx
+++ b/apps/web/server/routers/viewer.tsx
@@ -550,7 +550,11 @@ const loggedInViewerRouter = createProtectedRouter()
       const connectedCalendars = await getConnectedCalendars(calendarCredentials, user.selectedCalendars);
       const allCals = connectedCalendars.map((cal) => cal.calendars ?? []).flat();
 
-      if (!allCals.find((cal) => cal.externalId === externalId && cal.integration === integration)) {
+      const credentialId = allCals.find(
+        (cal) => cal.externalId === externalId && cal.integration === integration && cal.readOnly === false
+      )?.credentialId;
+
+      if (!credentialId) {
         throw new TRPCError({ code: "BAD_REQUEST", message: `Could not find calendar ${input.externalId}` });
       }
 
@@ -565,11 +569,13 @@ const loggedInViewerRouter = createProtectedRouter()
         update: {
           integration,
           externalId,
+          credentialId,
         },
         create: {
           ...where,
           integration,
           externalId,
+          credentialId,
         },
       });
     },
diff --git a/packages/app-store/googlecalendar/lib/CalendarService.ts b/packages/app-store/googlecalendar/lib/CalendarService.ts
index 1240962576..55f2ee3e6f 100644
--- a/packages/app-store/googlecalendar/lib/CalendarService.ts
+++ b/packages/app-store/googlecalendar/lib/CalendarService.ts
@@ -337,6 +337,7 @@ export default class GoogleCalendarService implements Calendar {
                 integration: this.integrationName,
                 name: cal.summary ?? "No name",
                 primary: cal.primary ?? false,
+                readOnly: !(cal.accessRole === "reader" || cal.accessRole === "owner") && true,
               };
               return calendar;
             }) || []
diff --git a/packages/app-store/office365calendar/lib/CalendarService.ts b/packages/app-store/office365calendar/lib/CalendarService.ts
index 3b6629f3ee..90279163db 100644
--- a/packages/app-store/office365calendar/lib/CalendarService.ts
+++ b/packages/app-store/office365calendar/lib/CalendarService.ts
@@ -177,6 +177,7 @@ export default class Office365CalendarService implements Calendar {
               integration: this.integrationName,
               name: cal.name ?? "No calendar name",
               primary: cal.isDefaultCalendar ?? false,
+              readOnly: !cal.canEdit && true,
             };
             return calendar;
           });
diff --git a/packages/core/CalendarManager.ts b/packages/core/CalendarManager.ts
index db4610944f..33a5714ea7 100644
--- a/packages/core/CalendarManager.ts
+++ b/packages/core/CalendarManager.ts
@@ -46,6 +46,7 @@ export const getConnectedCalendars = async (
             ...cal,
             primary: cal.primary || null,
             isSelected: selectedCalendars.some((selected) => selected.externalId === cal.externalId),
+            credentialId,
           }))
           .sortBy(["primary"])
           .value();
diff --git a/packages/core/EventManager.ts b/packages/core/EventManager.ts
index 2195c98909..188a31e17b 100644
--- a/packages/core/EventManager.ts
+++ b/packages/core/EventManager.ts
@@ -282,6 +282,18 @@ export default class EventManager {
     /** Can I use destinationCalendar here? */
     /* How can I link a DC to a cred? */
     if (event.destinationCalendar) {
+      if (event.destinationCalendar.credentialId) {
+        const credential = await prisma.credential.findFirst({
+          where: {
+            id: event.destinationCalendar.credentialId,
+          },
+        });
+
+        if (credential) {
+          return [await createEvent(credential, event)];
+        }
+      }
+
       const destinationCalendarCredentials = this.calendarCredentials.filter(
         (c) => c.type === event.destinationCalendar?.integration
       );
diff --git a/packages/prisma/migrations/20220629151617_connect_destination_calendar_to_credential/migration.sql b/packages/prisma/migrations/20220629151617_connect_destination_calendar_to_credential/migration.sql
new file mode 100644
index 0000000000..e4002e77dd
--- /dev/null
+++ b/packages/prisma/migrations/20220629151617_connect_destination_calendar_to_credential/migration.sql
@@ -0,0 +1,5 @@
+-- AlterTable
+ALTER TABLE "DestinationCalendar" ADD COLUMN     "credentialId" INTEGER;
+
+-- AddForeignKey
+ALTER TABLE "DestinationCalendar" ADD CONSTRAINT "DestinationCalendar_credentialId_fkey" FOREIGN KEY ("credentialId") REFERENCES "Credential"("id") ON DELETE SET NULL ON UPDATE CASCADE;
diff --git a/packages/prisma/schema.prisma b/packages/prisma/schema.prisma
index d790f842ff..538fb7794f 100644
--- a/packages/prisma/schema.prisma
+++ b/packages/prisma/schema.prisma
@@ -89,6 +89,7 @@ model Credential {
   app    App?    @relation(fields: [appId], references: [slug], onDelete: Cascade)
   // How to make it a required column?
   appId  String?
+  destinationCalendars DestinationCalendar[]
 }
 
 enum UserPlan {
@@ -113,6 +114,8 @@ model DestinationCalendar {
   bookingId   Int?       @unique
   eventType   EventType? @relation(fields: [eventTypeId], references: [id])
   eventTypeId Int?       @unique
+  credentialId Int?
+  credential Credential? @relation(fields: [credentialId], references: [id])
 }
 
 enum UserPermissionRole {
diff --git a/packages/types/Calendar.d.ts b/packages/types/Calendar.d.ts
index bd378bf0f5..68bb770d7d 100644
--- a/packages/types/Calendar.d.ts
+++ b/packages/types/Calendar.d.ts
@@ -146,6 +146,7 @@ export interface AdditionalInformation {
 export interface IntegrationCalendar extends Ensure<Partial<SelectedCalendar>, "externalId"> {
   primary?: boolean;
   name?: string;
+  readOnly?: boolean;
 }
 
 export interface Calendar {