diff --git a/packages/backend/src/graphql/mutations/create-connection.ts b/packages/backend/src/graphql/mutations/create-connection.ts
index fcaf093d..4a454865 100644
--- a/packages/backend/src/graphql/mutations/create-connection.ts
+++ b/packages/backend/src/graphql/mutations/create-connection.ts
@@ -18,6 +18,7 @@ const createConnection = async (
   return await context.currentUser.$relatedQuery('connections').insert({
     key: params.input.key,
     formattedData: params.input.formattedData,
+    verified: false,
   });
 };
 
diff --git a/packages/backend/src/models/connection.ts b/packages/backend/src/models/connection.ts
index 34968a19..4b215ca4 100644
--- a/packages/backend/src/models/connection.ts
+++ b/packages/backend/src/models/connection.ts
@@ -4,7 +4,6 @@ import { AES, enc } from 'crypto-js';
 import Base from './base';
 import User from './user';
 import Step from './step';
-import App from './app';
 import appConfig from '../config/app';
 import { IJSONObject } from '@automatisch/types';
 import Telemetry from '../helpers/telemetry';
@@ -15,7 +14,7 @@ class Connection extends Base {
   data: string;
   formattedData?: IJSONObject;
   userId!: string;
-  verified = false;
+  verified: boolean;
   draft: boolean;
   count?: number;
   flowCount?: number;
@@ -32,7 +31,7 @@ class Connection extends Base {
       data: { type: 'string' },
       formattedData: { type: 'object' },
       userId: { type: 'string', format: 'uuid' },
-      verified: { type: 'boolean' },
+      verified: { type: 'boolean', default: false },
       draft: { type: 'boolean' },
     },
   };
diff --git a/packages/backend/src/models/execution-step.ts b/packages/backend/src/models/execution-step.ts
index e063d344..2e4d2a8f 100644
--- a/packages/backend/src/models/execution-step.ts
+++ b/packages/backend/src/models/execution-step.ts
@@ -12,7 +12,7 @@ class ExecutionStep extends Base {
   dataIn!: IJSONObject;
   dataOut!: IJSONObject;
   errorDetails: IJSONObject;
-  status = 'failure';
+  status: 'success' | 'failure';
   step: Step;
 
   static tableName = 'execution_steps';
diff --git a/packages/backend/src/models/execution.ts b/packages/backend/src/models/execution.ts
index 73552bf7..c4847b17 100644
--- a/packages/backend/src/models/execution.ts
+++ b/packages/backend/src/models/execution.ts
@@ -7,9 +7,9 @@ import Telemetry from '../helpers/telemetry';
 class Execution extends Base {
   id!: string;
   flowId!: string;
-  testRun = false;
+  testRun: boolean;
   internalId: string;
-  executionSteps: ExecutionStep[] = [];
+  executionSteps: ExecutionStep[];
 
   static tableName = 'executions';
 
@@ -19,7 +19,7 @@ class Execution extends Base {
     properties: {
       id: { type: 'string', format: 'uuid' },
       flowId: { type: 'string', format: 'uuid' },
-      testRun: { type: 'boolean' },
+      testRun: { type: 'boolean', default: false },
       internalId: { type: 'string' },
     },
   };
diff --git a/packages/backend/src/models/step.ts b/packages/backend/src/models/step.ts
index 1885c7ad..719fbbf3 100644
--- a/packages/backend/src/models/step.ts
+++ b/packages/backend/src/models/step.ts
@@ -15,7 +15,7 @@ class Step extends Base {
   appKey?: string;
   type!: IStep['type'];
   connectionId?: string;
-  status = 'incomplete';
+  status: 'incomplete' | 'completed';
   position!: number;
   parameters: IJSONObject;
   connection?: Connection;
@@ -35,7 +35,11 @@ class Step extends Base {
       appKey: { type: ['string', 'null'], minLength: 1, maxLength: 255 },
       type: { type: 'string', enum: ['action', 'trigger'] },
       connectionId: { type: ['string', 'null'], format: 'uuid' },
-      status: { type: 'string', enum: ['incomplete', 'completed'] },
+      status: {
+        type: 'string',
+        enum: ['incomplete', 'completed'],
+        default: 'incomplete',
+      },
       position: { type: 'integer' },
       parameters: { type: 'object' },
     },