diff --git a/backendless.d.ts b/backendless.d.ts
index 7ccf8a0f..5c797f00 100644
--- a/backendless.d.ts
+++ b/backendless.d.ts
@@ -615,7 +615,7 @@ declare module Backendless {
         function activateFlow(flowName: string, initialData?: object): Promise<void>
         function activateFlowById(flowId: string, initialData?: object): Promise<void>
         function activateFlowTrigger(flowName: string, triggerName: string, data?: object): Promise<void>
-        function activateFlowTriggerById(flowId: string, triggerId: string, data?: object): Promise<void>
+        function activateFlowTriggerById(flowId: string, triggerId: string, data?: object, executionId?: string): Promise<void>
     }
 
     /**
diff --git a/src/automations/index.js b/src/automations/index.js
index 69caffb2..c4d6feb8 100644
--- a/src/automations/index.js
+++ b/src/automations/index.js
@@ -58,7 +58,7 @@ export default class Automations {
     })
   }
 
-  async activateFlowTriggerById(flowId, triggerId, data) {
+  async activateFlowTriggerById(flowId, triggerId, data, executionId) {
     if (!flowId || typeof flowId !== 'string') {
       throw new Error('The "flowId" argument must be provided and must be a string.')
     }
@@ -71,9 +71,20 @@ export default class Automations {
       throw new Error('The "data" argument must be an object.')
     }
 
+    if (executionId !== undefined && (typeof executionId !== 'string' || !executionId)) {
+      throw new Error('The "executionId" argument must be a non-empty string.')
+    }
+
+    const query = {}
+
+    if (executionId) {
+      query.executionId = executionId
+    }
+
     return this.app.request.post({
-      url : `${this.app.urls.automationFlow()}/${flowId}/trigger/${triggerId}/activate`,
-      data: data || {},
+      url  : `${this.app.urls.automationFlow()}/${flowId}/trigger/${triggerId}/activate`,
+      data : data || {},
+      query: query,
     })
   }
 }
diff --git a/test/tsd.ts b/test/tsd.ts
index 329282bd..5b947ea9 100644
--- a/test/tsd.ts
+++ b/test/tsd.ts
@@ -1529,12 +1529,13 @@ function testAutomations() {
     const flowId: string = 'id';
     const triggerName: string = 'str';
     const triggerId: string = 'id';
+    const executionId: string = 'id';
     let promiseObject: Promise<void>;
 
     promiseObject = Backendless.Automations.activateFlow(flowName, obj);
     promiseObject = Backendless.Automations.activateFlowById(flowId, obj);
     promiseObject = Backendless.Automations.activateFlowTrigger(flowName, triggerName, obj);
-    promiseObject = Backendless.Automations.activateFlowTriggerById(flowId, triggerId, obj);
+    promiseObject = Backendless.Automations.activateFlowTriggerById(flowId, triggerId, obj, executionId);
 }
 
 function testMessaging() {
diff --git a/test/unit/specs/automations/basic.js b/test/unit/specs/automations/basic.js
index 7ac7e208..98d2dd4e 100644
--- a/test/unit/specs/automations/basic.js
+++ b/test/unit/specs/automations/basic.js
@@ -8,6 +8,7 @@ describe('<Automations> Basic', function() {
 
   const FLOW_NAME = 'FlowName'
   const FLOW_ID = 'FlowID'
+  const EXECUTION_ID = 'ExecutionID'
   const TRIGGER_NAME = 'TriggerName'
   const TRIGGER_ID = 'TriggerID'
 
@@ -198,8 +199,11 @@ describe('<Automations> Basic', function() {
     it('success', async () => {
       const req1 = prepareMockRequest()
       const req2 = prepareMockRequest()
+      const req3 = prepareMockRequest()
+
       await Backendless.Automations.activateFlowTriggerById(FLOW_ID, TRIGGER_ID)
       await Backendless.Automations.activateFlowTriggerById(FLOW_ID, TRIGGER_ID, { name: 'Nick' })
+      await Backendless.Automations.activateFlowTriggerById(FLOW_ID, TRIGGER_ID, { name: 'Nick' }, EXECUTION_ID)
 
       expect(req1).to.deep.include({
         method: 'POST',
@@ -215,6 +219,14 @@ describe('<Automations> Basic', function() {
         }
       })
 
+      expect(req3).to.deep.include({
+        method: 'POST',
+        path  : `${APP_PATH}/automation/flow/${ FLOW_ID }/trigger/${ TRIGGER_ID }/activate?executionId=ExecutionID`,
+        body  : {
+          name: 'Nick',
+        }
+      })
+
     })
 
     it('fails when flow id is invalid', async () => {
@@ -262,6 +274,19 @@ describe('<Automations> Basic', function() {
       await expect(Backendless.Automations.activateFlowTriggerById(FLOW_ID, TRIGGER_ID, [])).to.eventually.be.rejectedWith(errorMsg)
       await expect(Backendless.Automations.activateFlowTriggerById(FLOW_ID, TRIGGER_ID, () => ({}))).to.eventually.be.rejectedWith(errorMsg)
     })
+
+    it('fails when execution id is invalid', async () => {
+      const errorMsg = 'The "executionId" argument must be a non-empty string.'
+
+      await expect(Backendless.Automations.activateFlowTriggerById(FLOW_ID, TRIGGER_ID, {}, null)).to.eventually.be.rejectedWith(errorMsg)
+      await expect(Backendless.Automations.activateFlowTriggerById(FLOW_ID, TRIGGER_ID, {}, true)).to.eventually.be.rejectedWith(errorMsg)
+      await expect(Backendless.Automations.activateFlowTriggerById(FLOW_ID, TRIGGER_ID, {}, false)).to.eventually.be.rejectedWith(errorMsg)
+      await expect(Backendless.Automations.activateFlowTriggerById(FLOW_ID, TRIGGER_ID, {}, 0)).to.eventually.be.rejectedWith(errorMsg)
+      await expect(Backendless.Automations.activateFlowTriggerById(FLOW_ID, TRIGGER_ID, {}, 123)).to.eventually.be.rejectedWith(errorMsg)
+      await expect(Backendless.Automations.activateFlowTriggerById(FLOW_ID, TRIGGER_ID, {}, [])).to.eventually.be.rejectedWith(errorMsg)
+      await expect(Backendless.Automations.activateFlowTriggerById(FLOW_ID, TRIGGER_ID, {}, () => ({}))).to.eventually.be.rejectedWith(errorMsg)
+      await expect(Backendless.Automations.activateFlowTriggerById(FLOW_ID, TRIGGER_ID, {}, '')).to.eventually.be.rejectedWith(errorMsg)
+    })
   })
 
 })