diff --git a/apps/api/v2/src/ee/bookings/2024-04-15/bookings.module.ts b/apps/api/v2/src/ee/bookings/2024-04-15/bookings.module.ts
index 41b03b8592..24a7490391 100644
--- a/apps/api/v2/src/ee/bookings/2024-04-15/bookings.module.ts
+++ b/apps/api/v2/src/ee/bookings/2024-04-15/bookings.module.ts
@@ -1,15 +1,20 @@
 import { BookingsController_2024_04_15 } from "@/ee/bookings/2024-04-15/controllers/bookings.controller";
 import { PlatformBookingsService } from "@/ee/bookings/shared/platform-bookings.service";
+import { CalendarsRepository } from "@/ee/calendars/calendars.repository";
+import { CalendarsService } from "@/ee/calendars/services/calendars.service";
 import { EventTypesModule_2024_04_15 } from "@/ee/event-types/event-types_2024_04_15/event-types.module";
 import { EventTypesModule_2024_06_14 } from "@/ee/event-types/event-types_2024_06_14/event-types.module";
 import { SchedulesModule_2024_04_15 } from "@/ee/schedules/schedules_2024_04_15/schedules.module";
 import { ApiKeysRepository } from "@/modules/api-keys/api-keys-repository";
+import { AppsRepository } from "@/modules/apps/apps.repository";
 import { BillingModule } from "@/modules/billing/billing.module";
+import { CredentialsRepository } from "@/modules/credentials/credentials.repository";
 import { OAuthClientRepository } from "@/modules/oauth-clients/oauth-client.repository";
 import { OAuthClientUsersService } from "@/modules/oauth-clients/services/oauth-clients-users.service";
 import { OAuthFlowService } from "@/modules/oauth-clients/services/oauth-flow.service";
 import { PrismaModule } from "@/modules/prisma/prisma.module";
 import { RedisModule } from "@/modules/redis/redis.module";
+import { SelectedCalendarsRepository } from "@/modules/selected-calendars/selected-calendars.repository";
 import { TokensModule } from "@/modules/tokens/tokens.module";
 import { TokensRepository } from "@/modules/tokens/tokens.repository";
 import { UsersModule } from "@/modules/users/users.module";
@@ -33,6 +38,11 @@ import { Module } from "@nestjs/common";
     ApiKeysRepository,
     OAuthClientUsersService,
     PlatformBookingsService,
+    CalendarsService,
+    CredentialsRepository,
+    AppsRepository,
+    CalendarsRepository,
+    SelectedCalendarsRepository,
   ],
   controllers: [BookingsController_2024_04_15],
 })
diff --git a/apps/api/v2/src/ee/bookings/2024-08-13/bookings.module.ts b/apps/api/v2/src/ee/bookings/2024-08-13/bookings.module.ts
index 6585b7055b..df4e6be0fe 100644
--- a/apps/api/v2/src/ee/bookings/2024-08-13/bookings.module.ts
+++ b/apps/api/v2/src/ee/bookings/2024-08-13/bookings.module.ts
@@ -4,19 +4,24 @@ import { BookingsService_2024_08_13 } from "@/ee/bookings/2024-08-13/services/bo
 import { InputBookingsService_2024_08_13 } from "@/ee/bookings/2024-08-13/services/input.service";
 import { OutputBookingsService_2024_08_13 } from "@/ee/bookings/2024-08-13/services/output.service";
 import { PlatformBookingsService } from "@/ee/bookings/shared/platform-bookings.service";
+import { CalendarsRepository } from "@/ee/calendars/calendars.repository";
+import { CalendarsService } from "@/ee/calendars/services/calendars.service";
 import { EventTypesModule_2024_04_15 } from "@/ee/event-types/event-types_2024_04_15/event-types.module";
 import { EventTypesModule_2024_06_14 } from "@/ee/event-types/event-types_2024_06_14/event-types.module";
 import { EventTypesRepository_2024_06_14 } from "@/ee/event-types/event-types_2024_06_14/event-types.repository";
 import { SchedulesModule_2024_04_15 } from "@/ee/schedules/schedules_2024_04_15/schedules.module";
 import { ApiKeysRepository } from "@/modules/api-keys/api-keys-repository";
+import { AppsRepository } from "@/modules/apps/apps.repository";
 import { BillingModule } from "@/modules/billing/billing.module";
 import { BookingSeatModule } from "@/modules/booking-seat/booking-seat.module";
 import { BookingSeatRepository } from "@/modules/booking-seat/booking-seat.repository";
+import { CredentialsRepository } from "@/modules/credentials/credentials.repository";
 import { OAuthClientRepository } from "@/modules/oauth-clients/oauth-client.repository";
 import { OAuthClientUsersService } from "@/modules/oauth-clients/services/oauth-clients-users.service";
 import { OAuthFlowService } from "@/modules/oauth-clients/services/oauth-flow.service";
 import { PrismaModule } from "@/modules/prisma/prisma.module";
 import { RedisModule } from "@/modules/redis/redis.module";
+import { SelectedCalendarsRepository } from "@/modules/selected-calendars/selected-calendars.repository";
 import { TokensModule } from "@/modules/tokens/tokens.module";
 import { TokensRepository } from "@/modules/tokens/tokens.repository";
 import { UsersModule } from "@/modules/users/users.module";
@@ -47,6 +52,11 @@ import { Module } from "@nestjs/common";
     BookingSeatRepository,
     ApiKeysRepository,
     PlatformBookingsService,
+    CalendarsService,
+    CredentialsRepository,
+    AppsRepository,
+    CalendarsRepository,
+    SelectedCalendarsRepository,
   ],
   controllers: [BookingsController_2024_08_13],
   exports: [InputBookingsService_2024_08_13, OutputBookingsService_2024_08_13, BookingsService_2024_08_13],
diff --git a/apps/api/v2/src/modules/oauth-clients/oauth-client.module.ts b/apps/api/v2/src/modules/oauth-clients/oauth-client.module.ts
index 8756c2de50..e14176f3a3 100644
--- a/apps/api/v2/src/modules/oauth-clients/oauth-client.module.ts
+++ b/apps/api/v2/src/modules/oauth-clients/oauth-client.module.ts
@@ -1,7 +1,11 @@
+import { CalendarsRepository } from "@/ee/calendars/calendars.repository";
+import { CalendarsService } from "@/ee/calendars/services/calendars.service";
 import { EventTypesModule_2024_04_15 } from "@/ee/event-types/event-types_2024_04_15/event-types.module";
 import { SchedulesModule_2024_04_15 } from "@/ee/schedules/schedules_2024_04_15/schedules.module";
+import { AppsRepository } from "@/modules/apps/apps.repository";
 import { AuthModule } from "@/modules/auth/auth.module";
 import { BillingModule } from "@/modules/billing/billing.module";
+import { CredentialsRepository } from "@/modules/credentials/credentials.repository";
 import { MembershipsModule } from "@/modules/memberships/memberships.module";
 import { OAuthClientUsersController } from "@/modules/oauth-clients/controllers/oauth-client-users/oauth-client-users.controller";
 import { OAuthClientsController } from "@/modules/oauth-clients/controllers/oauth-clients/oauth-clients.controller";
@@ -16,6 +20,7 @@ import { OrganizationsModule } from "@/modules/organizations/organizations.modul
 import { OrganizationsTeamsService } from "@/modules/organizations/teams/index/services/organizations-teams.service";
 import { PrismaModule } from "@/modules/prisma/prisma.module";
 import { RedisModule } from "@/modules/redis/redis.module";
+import { SelectedCalendarsRepository } from "@/modules/selected-calendars/selected-calendars.repository";
 import { StripeModule } from "@/modules/stripe/stripe.module";
 import { TokensModule } from "@/modules/tokens/tokens.module";
 import { TokensRepository } from "@/modules/tokens/tokens.repository";
@@ -42,6 +47,11 @@ import { JwtService } from "@nestjs/jwt";
     OAuthClientRepository,
     TokensRepository,
     OAuthFlowService,
+    CalendarsService,
+    CredentialsRepository,
+    AppsRepository,
+    CalendarsRepository,
+    SelectedCalendarsRepository,
     OAuthClientUsersService,
     OrganizationsTeamsService,
     OAuthClientsService,
diff --git a/apps/api/v2/src/modules/oauth-clients/services/oauth-clients-users.service.ts b/apps/api/v2/src/modules/oauth-clients/services/oauth-clients-users.service.ts
index 2d41b34f79..bfe69636b9 100644
--- a/apps/api/v2/src/modules/oauth-clients/services/oauth-clients-users.service.ts
+++ b/apps/api/v2/src/modules/oauth-clients/services/oauth-clients-users.service.ts
@@ -1,3 +1,4 @@
+import { CalendarsService } from "@/ee/calendars/services/calendars.service";
 import { EventTypesService_2024_04_15 } from "@/ee/event-types/event-types_2024_04_15/services/event-types.service";
 import { SchedulesService_2024_04_15 } from "@/ee/schedules/schedules_2024_04_15/services/schedules.service";
 import { GetManagedUsersInput } from "@/modules/oauth-clients/controllers/oauth-client-users/inputs/get-managed-users.input";
@@ -5,18 +6,21 @@ import { TokensRepository } from "@/modules/tokens/tokens.repository";
 import { CreateManagedUserInput } from "@/modules/users/inputs/create-managed-user.input";
 import { UpdateManagedUserInput } from "@/modules/users/inputs/update-managed-user.input";
 import { UsersRepository } from "@/modules/users/users.repository";
-import { BadRequestException, ConflictException, Injectable } from "@nestjs/common";
+import { BadRequestException, ConflictException, Injectable, Logger } from "@nestjs/common";
 import { User, CreationSource, PlatformOAuthClient } from "@prisma/client";
 
 import { createNewUsersConnectToOrgIfExists, slugify } from "@calcom/platform-libraries";
 
 @Injectable()
 export class OAuthClientUsersService {
+  private readonly logger = new Logger("OAuthClientUsersService");
+
   constructor(
     private readonly userRepository: UsersRepository,
     private readonly tokensRepository: TokensRepository,
     private readonly eventTypesService: EventTypesService_2024_04_15,
-    private readonly schedulesService: SchedulesService_2024_04_15
+    private readonly schedulesService: SchedulesService_2024_04_15,
+    private readonly calendarsService: CalendarsService
   ) {}
 
   async createOAuthClientUser(oAuthClient: PlatformOAuthClient, body: CreateManagedUserInput) {
@@ -87,6 +91,13 @@ export class OAuthClientUsersService {
       user.defaultScheduleId = defaultSchedule.id;
     }
 
+    try {
+      this.logger.log(`Setting default calendars in db for user with id ${user.id}`);
+      await this.calendarsService.getCalendars(user.id);
+    } catch (err) {
+      this.logger.error(`Could not get calendars of new managed user with id ${user.id}`);
+    }
+
     return {
       user,
       tokens: {