diff --git a/packages/core/content-type-builder/services/content-types.js b/packages/core/content-type-builder/services/content-types.js
index 4035b2ebf3..a2df64b020 100644
--- a/packages/core/content-type-builder/services/content-types.js
+++ b/packages/core/content-type-builder/services/content-types.js
@@ -7,7 +7,6 @@ const generator = require('@strapi/generate');
 const { nameToSlug, contentTypes: contentTypesUtils } = require('@strapi/utils');
 const { formatAttributes, replaceTemporaryUIDs } = require('../utils/attributes');
 const createBuilder = require('./schema-builder');
-const apiHandler = require('./api-handler');
 const { coreUids, pluginsUids } = require('./constants');
 
 const isContentTypeVisible = model =>
@@ -187,6 +186,7 @@ const editContentType = async (uid, { contentType, components = [] }) => {
   });
 
   if (newKind !== previousKind) {
+    const apiHandler = strapi.service('plugin::content-type-builder.api-handler');
     await apiHandler.backup(uid);
 
     try {
@@ -213,6 +213,7 @@ const editContentType = async (uid, { contentType, components = [] }) => {
 
 const deleteContentTypes = async uids => {
   const builder = createBuilder();
+  const apiHandler = strapi.service('plugin::content-type-builder.api-handler');
 
   for (const uid of uids) {
     await deleteContentType(uid, builder);
@@ -237,6 +238,8 @@ const deleteContentTypes = async uids => {
 const deleteContentType = async (uid, defaultBuilder = undefined) => {
   const builder = defaultBuilder || createBuilder();
   // make a backup
+  const apiHandler = strapi.service('plugin::content-type-builder.api-handler');
+  await new Promise(resolve => setTimeout(resolve, 3000));
   await apiHandler.backup(uid);
 
   const contentType = builder.deleteContentType(uid);
diff --git a/packages/core/strapi/lib/Strapi.js b/packages/core/strapi/lib/Strapi.js
index 330fc0d44e..eae53fd005 100644
--- a/packages/core/strapi/lib/Strapi.js
+++ b/packages/core/strapi/lib/Strapi.js
@@ -78,6 +78,10 @@ class Strapi {
     return ee({ dir: this.dir, logger: this.log });
   }
 
+  service(uid) {
+    return this.container.get('services').get(uid);
+  }
+
   plugin(name) {
     return this.container.get('modules').get(`plugin::${name}`);
   }
diff --git a/packages/plugins/users-permissions/services/users-permissions.js b/packages/plugins/users-permissions/services/users-permissions.js
index a77409dd46..10f1c3d811 100644
--- a/packages/plugins/users-permissions/services/users-permissions.js
+++ b/packages/plugins/users-permissions/services/users-permissions.js
@@ -232,7 +232,7 @@ module.exports = ({ strapi }) => ({
       return acc.concat(_.get(strapi.api[current].config, 'routes', []));
     }, []);
     const pluginsRoutes = Object.keys(strapi.plugins).reduce((acc, current) => {
-      const routes = strapi.container.plugin(current).routes.reduce((acc, curr) => {
+      const routes = strapi.plugin(current).routes.reduce((acc, curr) => {
         const prefix = curr.config.prefix;
         const path = prefix !== undefined ? `${prefix}${curr.path}` : `/${current}${curr.path}`;
         _.set(curr, 'path', path);
diff --git a/test/helpers/generators.js b/test/helpers/generators.js
index a8d6fe1adb..2d851e8c58 100644
--- a/test/helpers/generators.js
+++ b/test/helpers/generators.js
@@ -18,11 +18,11 @@ module.exports = {
       author: {
         type: 'relation',
         relation: 'manyToOne',
-        target: 'plugins::users-permissions.user',
+        target: 'plugin::users-permissions.user',
         targetAttribute: 'articles',
       },
     },
-    uid: 'application::article.article',
+    uid: 'api::article.article',
     name: 'article',
     description: '',
     collectionName: '',
@@ -35,11 +35,11 @@ module.exports = {
       articles: {
         type: 'relation',
         relation: 'manyToMany',
-        target: 'application::article.article',
+        target: 'api::article.article',
         targetAttribute: 'tags',
       },
     },
-    uid: 'application::tag.tag',
+    uid: 'api::tag.tag',
     name: 'tag',
     description: '',
     collectionName: '',
@@ -52,11 +52,11 @@ module.exports = {
       articles: {
         type: 'relation',
         relation: 'oneToMany',
-        target: 'application::article.article',
+        target: 'api::article.article',
         targetAttribute: 'category',
       },
     },
-    uid: 'application::category.category',
+    uid: 'api::category.category',
     name: 'category',
     description: '',
     collectionName: '',
@@ -69,16 +69,16 @@ module.exports = {
       article: {
         type: 'relation',
         relation: 'oneToOne',
-        target: 'application::article.article',
+        target: 'api::article.article',
         targetAttribute: 'reference',
       },
       tag: {
         type: 'relation',
         relation: 'oneToOne',
-        target: 'application::tag.tag',
+        target: 'api::tag.tag',
       },
     },
-    uid: 'application::reference.reference',
+    uid: 'api::reference.reference',
     name: 'reference',
     description: '',
     collectionName: 'refs',
@@ -95,7 +95,7 @@ module.exports = {
         type: 'boolean',
       },
     },
-    uid: 'application::product.product',
+    uid: 'api::product.product',
     name: 'product',
     description: '',
     collectionName: '',
@@ -108,10 +108,10 @@ module.exports = {
       tags: {
         type: 'relation',
         relation: 'oneToMany',
-        target: 'application::tag.tag',
+        target: 'api::tag.tag',
       },
     },
-    uid: 'application::articlewit.articlewit',
+    uid: 'api::articlewit.articlewit',
     name: 'articlewithtag',
     description: '',
     collectionName: '',
diff --git a/test/helpers/models.js b/test/helpers/models.js
index 70622273d8..e122456662 100644
--- a/test/helpers/models.js
+++ b/test/helpers/models.js
@@ -4,7 +4,7 @@ const { isFunction, isNil, prop } = require('lodash/fp');
 const { createStrapiInstance } = require('./strapi');
 
 const toUID = name => {
-  return name.includes('::') ? name : `application::${name}.${name}`;
+  return name.includes('::') ? name : `api::${name}.${name}`;
 };
 
 const createHelpers = async ({ strapi: strapiInstance = null, ...options } = {}) => {