diff --git a/packages/backend/src/apps/github/actions/create-issue/index.ts b/packages/backend/src/apps/github/actions/create-issue/index.ts
index 6a53da50..43ee8a12 100644
--- a/packages/backend/src/apps/github/actions/create-issue/index.ts
+++ b/packages/backend/src/apps/github/actions/create-issue/index.ts
@@ -27,25 +27,25 @@ export default defineAction({
             arguments: [
               {
                 name: 'key',
-                value: 'listRepos'
-              }
-            ]
-          }
+                value: 'listRepos',
+              },
+            ],
+          },
         },
         {
           label: 'Title',
           key: 'title',
           type: 'string',
           required: true,
-          variables: true
+          variables: true,
         },
         {
           label: 'Body',
           key: 'body',
           type: 'string',
           required: true,
-          variables: true
-        }
+          variables: true,
+        },
       ],
     },
     {
@@ -59,7 +59,7 @@ export default defineAction({
     const title = $.step.parameters.title as string;
     const body = $.step.parameters.body as string;
 
-    if (!repoParameter) throw new Error('A repo must be set!')
+    if (!repoParameter) throw new Error('A repo must be set!');
     if (!title) throw new Error('A title must be set!');
 
     const { repoOwner, repo } = getRepoOwnerAndRepo(repoParameter);
@@ -68,13 +68,6 @@ export default defineAction({
       body,
     });
 
-    const issue: IActionOutput = {
-      data: {
-        raw: response.data,
-      },
-      error: response?.integrationError,
-    };
-
-    return issue;
+    $.setActionItem({ raw: response.data });
   },
 });
diff --git a/packages/backend/src/apps/github/triggers/new-pull-requests/index.ts b/packages/backend/src/apps/github/triggers/new-pull-requests/index.ts
index 828b4fce..a6d262e2 100644
--- a/packages/backend/src/apps/github/triggers/new-pull-requests/index.ts
+++ b/packages/backend/src/apps/github/triggers/new-pull-requests/index.ts
@@ -9,7 +9,7 @@ export default defineTrigger({
   substeps: [
     {
       key: 'chooseConnection',
-      name: 'Choose connection'
+      name: 'Choose connection',
     },
     {
       key: 'chooseTrigger',
@@ -27,20 +27,20 @@ export default defineTrigger({
             arguments: [
               {
                 name: 'key',
-                value: 'listRepos'
-              }
-            ]
-          }
-        }
-      ]
+                value: 'listRepos',
+              },
+            ],
+          },
+        },
+      ],
     },
     {
       key: 'testStep',
-      name: 'Test trigger'
-    }
+      name: 'Test trigger',
+    },
   ],
 
   async run($) {
-    return await newPullRequests($);
+    await newPullRequests($);
   },
 });
diff --git a/packages/backend/src/apps/github/triggers/new-pull-requests/new-pull-requests.ts b/packages/backend/src/apps/github/triggers/new-pull-requests/new-pull-requests.ts
index 03c168d2..e827b546 100644
--- a/packages/backend/src/apps/github/triggers/new-pull-requests/new-pull-requests.ts
+++ b/packages/backend/src/apps/github/triggers/new-pull-requests/new-pull-requests.ts
@@ -1,7 +1,4 @@
-import {
-  IGlobalVariable,
-  ITriggerOutput,
-} from '@automatisch/types';
+import { IGlobalVariable, ITriggerOutput } from '@automatisch/types';
 import getRepoOwnerAndRepo from '../../common/get-repo-owner-and-repo';
 import parseLinkHeader from '../../../../helpers/parse-header-link';
 
@@ -29,16 +26,15 @@ const fetchPullRequests = async ($: IGlobalVariable) => {
     const response = await $.http.get(pathname, { params });
     links = parseLinkHeader(response.headers.link);
 
-    if (response.integrationError) {
-      pullRequests.error = response.integrationError;
-      return pullRequests;
-    }
-
     if (response.data.length) {
       for (const pullRequest of response.data) {
         const pullRequestId = pullRequest.id;
 
-        if (pullRequestId <= Number($.flow.lastInternalId) && !$.execution.testRun) return pullRequests;
+        if (
+          pullRequestId <= Number($.flow.lastInternalId) &&
+          !$.execution.testRun
+        )
+          return pullRequests;
 
         const dataItem = {
           raw: pullRequest,
@@ -53,7 +49,7 @@ const fetchPullRequests = async ($: IGlobalVariable) => {
   } while (links.next && !$.execution.testRun);
 
   return pullRequests;
-}
+};
 
 const newPullRequests = async ($: IGlobalVariable) => {
   const pullRequests = await fetchPullRequests($);
diff --git a/packages/backend/src/apps/github/triggers/new-stargazers/index.ts b/packages/backend/src/apps/github/triggers/new-stargazers/index.ts
index f4393f73..cf033f96 100644
--- a/packages/backend/src/apps/github/triggers/new-stargazers/index.ts
+++ b/packages/backend/src/apps/github/triggers/new-stargazers/index.ts
@@ -44,11 +44,9 @@ export default defineTrigger({
     await newStargazers($);
   },
 
-  sort($) {
-    $.triggerOutput.data.sort((stargazerA, stargazerB) => {
-      return (
-        Number(stargazerA.meta.internalId) - Number(stargazerB.meta.internalId)
-      );
-    });
+  sort(stargazerA, stargazerB) {
+    return (
+      Number(stargazerA.meta.internalId) - Number(stargazerB.meta.internalId)
+    );
   },
 });
diff --git a/packages/backend/src/apps/github/triggers/new-watchers/index.ts b/packages/backend/src/apps/github/triggers/new-watchers/index.ts
index cffd8f2f..a7f744d1 100644
--- a/packages/backend/src/apps/github/triggers/new-watchers/index.ts
+++ b/packages/backend/src/apps/github/triggers/new-watchers/index.ts
@@ -10,7 +10,7 @@ export default defineTrigger({
   substeps: [
     {
       key: 'chooseConnection',
-      name: 'Choose connection'
+      name: 'Choose connection',
     },
     {
       key: 'chooseTrigger',
@@ -28,20 +28,24 @@ export default defineTrigger({
             arguments: [
               {
                 name: 'key',
-                value: 'listRepos'
-              }
-            ]
-          }
+                value: 'listRepos',
+              },
+            ],
+          },
         },
-      ]
+      ],
     },
     {
       key: 'testStep',
-      name: 'Test trigger'
-    }
+      name: 'Test trigger',
+    },
   ],
 
   async run($) {
-    return await newWatchers($);
+    await newWatchers($);
+  },
+
+  sort() {
+    return -1;
   },
 });
diff --git a/packages/backend/src/apps/github/triggers/new-watchers/new-watchers.ts b/packages/backend/src/apps/github/triggers/new-watchers/new-watchers.ts
index 255ab493..fb4684b3 100644
--- a/packages/backend/src/apps/github/triggers/new-watchers/new-watchers.ts
+++ b/packages/backend/src/apps/github/triggers/new-watchers/new-watchers.ts
@@ -1,11 +1,8 @@
-import {
-  IGlobalVariable,
-  ITriggerOutput,
-} from '@automatisch/types';
+import { IGlobalVariable, ITriggerOutput } from '@automatisch/types';
 import getRepoOwnerAndRepo from '../../common/get-repo-owner-and-repo';
 import parseLinkHeader from '../../../../helpers/parse-header-link';
 
-const fetchWatchers = async ($: IGlobalVariable) => {
+const newWatchers = async ($: IGlobalVariable) => {
   const repoParameter = $.step.parameters.repo as string;
 
   if (!repoParameter) throw new Error('A repo must be set!');
@@ -15,9 +12,9 @@ const fetchWatchers = async ($: IGlobalVariable) => {
   const firstPagePathname = `/repos/${repoOwner}/${repo}/subscribers`;
   const requestConfig = {
     params: {
-      per_page: 100
+      per_page: 100,
     },
-  }
+  };
 
   const firstPageResponse = await $.http.get(firstPagePathname, requestConfig);
   const firstPageLinks = parseLinkHeader(firstPageResponse.headers.link);
@@ -25,20 +22,11 @@ const fetchWatchers = async ($: IGlobalVariable) => {
   // in case there is only single page to fetch
   let pathname = firstPageLinks.last?.uri || firstPagePathname;
 
-  const watchers: ITriggerOutput = {
-    data: [],
-  };
-
   do {
     const response = await $.http.get(pathname, requestConfig);
     const links = parseLinkHeader(response.headers.link);
     pathname = links.prev?.uri;
 
-    if (response.integrationError) {
-      watchers.error = response.integrationError;
-      return watchers;
-    }
-
     if (response.data.length) {
       // to iterate reverse-chronologically
       response.data.reverse();
@@ -46,7 +34,8 @@ const fetchWatchers = async ($: IGlobalVariable) => {
       for (const watcher of response.data) {
         const watcherId = watcher.id.toString();
 
-        if ($.flow.isAlreadyProcessed(watcherId) && !$.execution.testRun) return watchers;
+        if ($.flow.isAlreadyProcessed(watcherId) && !$.execution.testRun)
+          return;
 
         const dataItem = {
           raw: watcher,
@@ -55,21 +44,10 @@ const fetchWatchers = async ($: IGlobalVariable) => {
           },
         };
 
-        watchers.data.push(dataItem);
+        $.pushTriggerItem(dataItem);
       }
     }
   } while (pathname && !$.execution.testRun === false);
-
-  return watchers;
-}
-
-const newWatchers = async ($: IGlobalVariable) => {
-  const watchers = await fetchWatchers($);
-
-  // to process chronologically
-  watchers.data.reverse();
-
-  return watchers;
 };
 
 export default newWatchers;
diff --git a/packages/backend/src/apps/twitter/common/get-user-followers.ts b/packages/backend/src/apps/twitter/common/get-user-followers.ts
index 45d47d3f..cc174311 100644
--- a/packages/backend/src/apps/twitter/common/get-user-followers.ts
+++ b/packages/backend/src/apps/twitter/common/get-user-followers.ts
@@ -1,8 +1,4 @@
-import {
-  IGlobalVariable,
-  IJSONObject,
-  ITriggerOutput,
-} from '@automatisch/types';
+import { IGlobalVariable, IJSONObject } from '@automatisch/types';
 import { URLSearchParams } from 'url';
 import { omitBy, isEmpty } from 'lodash';
 
@@ -16,10 +12,6 @@ const getUserFollowers = async (
 ) => {
   let response;
 
-  const followers: ITriggerOutput = {
-    data: [],
-  };
-
   do {
     const params: IJSONObject = {
       pagination_token: response?.data?.meta?.next_token,
@@ -40,18 +32,16 @@ const getUserFollowers = async (
     if (response.data.meta.result_count > 0) {
       for (const follower of response.data.data) {
         if ($.flow.isAlreadyProcessed(follower.id as string)) {
-          return followers;
+          return;
         }
 
-        followers.data.push({
+        $.pushTriggerItem({
           raw: follower,
           meta: { internalId: follower.id as string },
         });
       }
     }
   } while (response.data.meta.next_token && !$.execution.testRun);
-
-  return followers;
 };
 
 export default getUserFollowers;
diff --git a/packages/backend/src/apps/twitter/triggers/my-tweets/index.ts b/packages/backend/src/apps/twitter/triggers/my-tweets/index.ts
index 8f9f4475..cfcd13f2 100644
--- a/packages/backend/src/apps/twitter/triggers/my-tweets/index.ts
+++ b/packages/backend/src/apps/twitter/triggers/my-tweets/index.ts
@@ -21,9 +21,7 @@ export default defineTrigger({
     await getUserTweets($, { currentUser: true });
   },
 
-  sort($) {
-    $.triggerOutput.data.sort((tweet, nextTweet) => {
-      return Number(nextTweet.meta.internalId) - Number(tweet.meta.internalId);
-    });
+  sort(tweet, nextTweet) {
+    return Number(nextTweet.meta.internalId) - Number(tweet.meta.internalId);
   },
 });
diff --git a/packages/backend/src/apps/twitter/triggers/new-follower-of-me/index.ts b/packages/backend/src/apps/twitter/triggers/new-follower-of-me/index.ts
index 8f5fe4f6..19adfd6c 100644
--- a/packages/backend/src/apps/twitter/triggers/new-follower-of-me/index.ts
+++ b/packages/backend/src/apps/twitter/triggers/new-follower-of-me/index.ts
@@ -19,6 +19,6 @@ export default defineTrigger({
   ],
 
   async run($) {
-    return await myFollowers($);
+    await myFollowers($);
   },
 });
diff --git a/packages/backend/src/apps/twitter/triggers/search-tweets/index.ts b/packages/backend/src/apps/twitter/triggers/search-tweets/index.ts
index 3e69afd2..506bbe83 100644
--- a/packages/backend/src/apps/twitter/triggers/search-tweets/index.ts
+++ b/packages/backend/src/apps/twitter/triggers/search-tweets/index.ts
@@ -34,9 +34,7 @@ export default defineTrigger({
     await searchTweets($);
   },
 
-  sort($) {
-    $.triggerOutput.data.sort((tweet, nextTweet) => {
-      return Number(nextTweet.meta.internalId) - Number(tweet.meta.internalId);
-    });
+  sort(tweet, nextTweet) {
+    return Number(nextTweet.meta.internalId) - Number(tweet.meta.internalId);
   },
 });
diff --git a/packages/backend/src/apps/twitter/triggers/user-tweets/index.ts b/packages/backend/src/apps/twitter/triggers/user-tweets/index.ts
index 783fe028..dab530ae 100644
--- a/packages/backend/src/apps/twitter/triggers/user-tweets/index.ts
+++ b/packages/backend/src/apps/twitter/triggers/user-tweets/index.ts
@@ -33,9 +33,7 @@ export default defineTrigger({
     await getUserTweets($, { currentUser: false });
   },
 
-  sort($) {
-    $.triggerOutput.data.sort((tweet, nextTweet) => {
-      return Number(nextTweet.meta.internalId) - Number(tweet.meta.internalId);
-    });
+  sort(tweet, nextTweet) {
+    return Number(nextTweet.meta.internalId) - Number(tweet.meta.internalId);
   },
 });
diff --git a/packages/backend/src/helpers/global-variable.ts b/packages/backend/src/helpers/global-variable.ts
index 26291fa9..1db67650 100644
--- a/packages/backend/src/helpers/global-variable.ts
+++ b/packages/backend/src/helpers/global-variable.ts
@@ -3,7 +3,13 @@ import Connection from '../models/connection';
 import Flow from '../models/flow';
 import Step from '../models/step';
 import Execution from '../models/execution';
-import { IJSONObject, IApp, IGlobalVariable } from '@automatisch/types';
+import {
+  IJSONObject,
+  IApp,
+  IGlobalVariable,
+  ITriggerItem,
+  IActionItem,
+} from '@automatisch/types';
 
 type GlobalVariableOptions = {
   connection?: Connection;
@@ -61,11 +67,15 @@ const globalVariable = async (
     },
     triggerOutput: {
       data: [],
-      error: null,
     },
     actionOutput: {
       data: null,
-      error: null,
+    },
+    pushTriggerItem: (triggerItem: ITriggerItem) => {
+      $.triggerOutput.data.push(triggerItem);
+    },
+    setActionItem: (actionItem: IActionItem) => {
+      $.actionOutput.data = actionItem;
     },
   };
 
diff --git a/packages/backend/src/services/action.ts b/packages/backend/src/services/action.ts
index b4c3f66c..aefdeaf3 100644
--- a/packages/backend/src/services/action.ts
+++ b/packages/backend/src/services/action.ts
@@ -39,16 +39,29 @@ export const processAction = async (options: ProcessActionOptions) => {
   const actionCommand = await step.getActionCommand();
 
   $.step.parameters = computedParameters;
-  const actionOutput = await actionCommand.run($);
+
+  try {
+    await actionCommand.run($);
+  } catch (error) {
+    if (error?.response?.httpError) {
+      $.actionOutput.error = error.response.httpError;
+    } else {
+      try {
+        $.actionOutput.error = JSON.parse(error.message);
+      } catch {
+        $.actionOutput.error = { error: error.message };
+      }
+    }
+  }
 
   const executionStep = await execution
     .$relatedQuery('executionSteps')
     .insertAndFetch({
       stepId: $.step.id,
-      status: actionOutput.error ? 'failure' : 'success',
+      status: $.actionOutput.error ? 'failure' : 'success',
       dataIn: computedParameters,
-      dataOut: actionOutput.error ? null : actionOutput.data?.raw,
-      errorDetails: actionOutput.error ? actionOutput.error : null,
+      dataOut: $.actionOutput.error ? null : $.actionOutput.data?.raw,
+      errorDetails: $.actionOutput.error ? $.actionOutput.error : null,
     });
 
   return { flowId, stepId, executionId, executionStep };
diff --git a/packages/backend/src/services/flow.ts b/packages/backend/src/services/flow.ts
index 1a333872..4cde0fd7 100644
--- a/packages/backend/src/services/flow.ts
+++ b/packages/backend/src/services/flow.ts
@@ -35,7 +35,7 @@ export const processFlow = async (options: ProcessFlowOptions) => {
   }
 
   if (triggerCommand?.sort) {
-    triggerCommand.sort($);
+    $.triggerOutput.data.sort(triggerCommand.sort);
   }
 
   return $.triggerOutput;
diff --git a/packages/backend/src/services/test-run.ts b/packages/backend/src/services/test-run.ts
index 950aecc3..4d18028d 100644
--- a/packages/backend/src/services/test-run.ts
+++ b/packages/backend/src/services/test-run.ts
@@ -35,13 +35,13 @@ const testRun = async (options: TestRunOptions) => {
     return { executionStep: triggerExecutionStepWithError };
   }
 
-  const firstTriggerDataItem = data[0];
+  const firstTriggerItem = data[0];
 
   const { executionId, executionStep: triggerExecutionStep } =
     await processTrigger({
       flowId: flow.id,
       stepId: triggerStep.id,
-      triggerDataItem: firstTriggerDataItem,
+      triggerItem: firstTriggerItem,
       testRun: true,
     });
 
diff --git a/packages/backend/src/services/trigger.ts b/packages/backend/src/services/trigger.ts
index 265f2bb6..8cfdc974 100644
--- a/packages/backend/src/services/trigger.ts
+++ b/packages/backend/src/services/trigger.ts
@@ -1,4 +1,4 @@
-import { IJSONObject, ITriggerDataItem } from '@automatisch/types';
+import { IJSONObject, ITriggerItem } from '@automatisch/types';
 import Step from '../models/step';
 import Flow from '../models/flow';
 import Execution from '../models/execution';
@@ -7,13 +7,13 @@ import globalVariable from '../helpers/global-variable';
 type ProcessTriggerOptions = {
   flowId: string;
   stepId: string;
-  triggerDataItem?: ITriggerDataItem;
+  triggerItem?: ITriggerItem;
   error?: IJSONObject;
   testRun?: boolean;
 };
 
 export const processTrigger = async (options: ProcessTriggerOptions) => {
-  const { flowId, stepId, triggerDataItem, error, testRun } = options;
+  const { flowId, stepId, triggerItem, error, testRun } = options;
 
   const step = await Step.query().findById(stepId).throwIfNotFound();
 
@@ -29,7 +29,7 @@ export const processTrigger = async (options: ProcessTriggerOptions) => {
   const execution = await Execution.query().insert({
     flowId: $.flow.id,
     testRun,
-    internalId: triggerDataItem?.meta.internalId,
+    internalId: triggerItem?.meta.internalId,
   });
 
   const executionStep = await execution
@@ -38,7 +38,7 @@ export const processTrigger = async (options: ProcessTriggerOptions) => {
       stepId: $.step.id,
       status: error ? 'failure' : 'success',
       dataIn: $.step.parameters,
-      dataOut: !error ? triggerDataItem?.raw : null,
+      dataOut: !error ? triggerItem?.raw : null,
       errorDetails: error,
     });
 
diff --git a/packages/backend/src/workers/flow.ts b/packages/backend/src/workers/flow.ts
index 917583cf..d8dc670a 100644
--- a/packages/backend/src/workers/flow.ts
+++ b/packages/backend/src/workers/flow.ts
@@ -15,13 +15,15 @@ export const worker = new Worker(
 
     const { data, error } = await processFlow({ flowId });
 
-    for (const triggerDataItem of data) {
-      const jobName = `${triggerStep.id}-${triggerDataItem.meta.internalId}`;
+    const reversedData = data.reverse();
+
+    for (const triggerItem of reversedData) {
+      const jobName = `${triggerStep.id}-${triggerItem.meta.internalId}`;
 
       const jobPayload = {
         flowId,
         stepId: triggerStep.id,
-        triggerDataItem,
+        triggerItem,
       };
 
       await triggerQueue.add(jobName, jobPayload);
diff --git a/packages/backend/src/workers/trigger.ts b/packages/backend/src/workers/trigger.ts
index f82f568d..8d64e032 100644
--- a/packages/backend/src/workers/trigger.ts
+++ b/packages/backend/src/workers/trigger.ts
@@ -1,7 +1,7 @@
 import { Worker } from 'bullmq';
 import redisConfig from '../config/redis';
 import logger from '../helpers/logger';
-import { IJSONObject, ITriggerDataItem } from '@automatisch/types';
+import { IJSONObject, ITriggerItem } from '@automatisch/types';
 import actionQueue from '../queues/action';
 import Step from '../models/step';
 import { processTrigger } from '../services/trigger';
@@ -9,7 +9,7 @@ import { processTrigger } from '../services/trigger';
 type JobData = {
   flowId: string;
   stepId: string;
-  triggerDataItem?: ITriggerDataItem;
+  triggerItem?: ITriggerItem;
   error?: IJSONObject;
 };
 
diff --git a/packages/types/index.d.ts b/packages/types/index.d.ts
index 35808c4e..c1580321 100644
--- a/packages/types/index.d.ts
+++ b/packages/types/index.d.ts
@@ -194,11 +194,11 @@ export interface IService {
 }
 
 export interface ITriggerOutput {
-  data: ITriggerDataItem[];
+  data: ITriggerItem[];
   error?: IJSONObject;
 }
 
-export interface ITriggerDataItem {
+export interface ITriggerItem {
   raw: IJSONObject;
   meta: {
     internalId: string;
@@ -212,17 +212,17 @@ export interface ITrigger {
   description: string;
   dedupeStrategy?: 'greatest' | 'unique' | 'last';
   substeps: ISubstep[];
-  getInterval?(parameters: IGlobalVariable['step']['parameters']): string;
-  run($: IGlobalVariable): Promise<void | ITriggerOutput>;
-  sort?($: IGlobalVariable): void | ITriggerOutput;
+  getInterval?(parameters: IStep['parameters']): string;
+  run($: IGlobalVariable): Promise<void>;
+  sort?(item: ITriggerItem, nextItem: ITriggerItem): number;
 }
 
 export interface IActionOutput {
-  data: IActionDataItem;
+  data: IActionItem;
   error?: IJSONObject;
 }
 
-export interface IActionDataItem {
+export interface IActionItem {
   raw: {
     data?: IJSONObject;
   };
@@ -233,7 +233,7 @@ export interface IAction {
   key: string;
   description: string;
   substeps: ISubstep[];
-  run($: IGlobalVariable): Promise<void | IActionOutput>;
+  run($: IGlobalVariable): Promise<void>;
 }
 
 export interface IAuthentication {
@@ -282,7 +282,8 @@ export type IGlobalVariable = {
   };
   triggerOutput?: ITriggerOutput;
   actionOutput?: IActionOutput;
-  process?: (triggerDataItem: ITriggerDataItem) => Promise<void>;
+  pushTriggerItem?: (triggerItem: ITriggerItem) => void;
+  setActionItem?: (actionItem: IActionItem) => void;
 };
 
 declare module 'axios' {