diff --git a/packages/core/core-flows/src/promotion/workflows/create-campaigns.ts b/packages/core/core-flows/src/promotion/workflows/create-campaigns.ts
index bfcc5e5c8b..38096f2a96 100644
--- a/packages/core/core-flows/src/promotion/workflows/create-campaigns.ts
+++ b/packages/core/core-flows/src/promotion/workflows/create-campaigns.ts
@@ -1,17 +1,26 @@
-import { CampaignDTO, CreateCampaignDTO } from "@medusajs/types"
+import { AdditionalData, CreateCampaignDTO } from "@medusajs/types"
 import {
   WorkflowData,
   WorkflowResponse,
+  createHook,
   createWorkflow,
 } from "@medusajs/workflows-sdk"
 import { createCampaignsStep } from "../steps"
 
-type WorkflowInput = { campaignsData: CreateCampaignDTO[] }
+type WorkflowInput = { campaignsData: CreateCampaignDTO[] } & AdditionalData
 
 export const createCampaignsWorkflowId = "create-campaigns"
 export const createCampaignsWorkflow = createWorkflow(
   createCampaignsWorkflowId,
-  (input: WorkflowData<WorkflowInput>): WorkflowResponse<CampaignDTO[]> => {
-    return new WorkflowResponse(createCampaignsStep(input.campaignsData))
+  (input: WorkflowData<WorkflowInput>) => {
+    const createdCampaigns = createCampaignsStep(input.campaignsData)
+    const campaignsCreated = createHook("campaignsCreated", {
+      campaigns: createdCampaigns,
+      additional_data: input.additional_data,
+    })
+
+    return new WorkflowResponse(createdCampaigns, {
+      hooks: [campaignsCreated],
+    })
   }
 )
diff --git a/packages/core/core-flows/src/promotion/workflows/create-promotions.ts b/packages/core/core-flows/src/promotion/workflows/create-promotions.ts
index 240b5d01b6..0ce51df955 100644
--- a/packages/core/core-flows/src/promotion/workflows/create-promotions.ts
+++ b/packages/core/core-flows/src/promotion/workflows/create-promotions.ts
@@ -1,17 +1,26 @@
-import { CreatePromotionDTO, PromotionDTO } from "@medusajs/types"
+import { AdditionalData, CreatePromotionDTO } from "@medusajs/types"
 import {
   WorkflowData,
   WorkflowResponse,
+  createHook,
   createWorkflow,
 } from "@medusajs/workflows-sdk"
 import { createPromotionsStep } from "../steps"
 
-type WorkflowInput = { promotionsData: CreatePromotionDTO[] }
+type WorkflowInput = { promotionsData: CreatePromotionDTO[] } & AdditionalData
 
 export const createPromotionsWorkflowId = "create-promotions"
 export const createPromotionsWorkflow = createWorkflow(
   createPromotionsWorkflowId,
-  (input: WorkflowData<WorkflowInput>): WorkflowResponse<PromotionDTO[]> => {
-    return new WorkflowResponse(createPromotionsStep(input.promotionsData))
+  (input: WorkflowData<WorkflowInput>) => {
+    const createdPromotions = createPromotionsStep(input.promotionsData)
+    const promotionsCreated = createHook("promotionsCreated", {
+      promotions: createdPromotions,
+      additional_data: input.additional_data,
+    })
+
+    return new WorkflowResponse(createdPromotions, {
+      hooks: [promotionsCreated],
+    })
   }
 )
diff --git a/packages/core/core-flows/src/promotion/workflows/delete-campaigns.ts b/packages/core/core-flows/src/promotion/workflows/delete-campaigns.ts
index a6c14f4e04..2d4707d677 100644
--- a/packages/core/core-flows/src/promotion/workflows/delete-campaigns.ts
+++ b/packages/core/core-flows/src/promotion/workflows/delete-campaigns.ts
@@ -1,4 +1,4 @@
-import { createWorkflow, WorkflowData } from "@medusajs/workflows-sdk"
+import { createHook, createWorkflow, WorkflowData, WorkflowResponse } from "@medusajs/workflows-sdk"
 import { deleteCampaignsStep } from "../steps"
 
 type WorkflowInput = { ids: string[] }
@@ -6,7 +6,14 @@ type WorkflowInput = { ids: string[] }
 export const deleteCampaignsWorkflowId = "delete-campaigns"
 export const deleteCampaignsWorkflow = createWorkflow(
   deleteCampaignsWorkflowId,
-  (input: WorkflowData<WorkflowInput>): WorkflowData<void> => {
-    return deleteCampaignsStep(input.ids)
+  (input: WorkflowData<WorkflowInput>) => {
+    const deletedCampaigns = deleteCampaignsStep(input.ids)
+    const campaignsDeleted = createHook("campaignsDeleted", {
+      ids: input.ids
+    })
+
+    return new WorkflowResponse(deletedCampaigns, {
+      hooks: [campaignsDeleted]
+    })
   }
 )
diff --git a/packages/core/core-flows/src/promotion/workflows/delete-promotions.ts b/packages/core/core-flows/src/promotion/workflows/delete-promotions.ts
index 7223afaa8a..8a741d1acc 100644
--- a/packages/core/core-flows/src/promotion/workflows/delete-promotions.ts
+++ b/packages/core/core-flows/src/promotion/workflows/delete-promotions.ts
@@ -1,4 +1,4 @@
-import { createWorkflow, WorkflowData } from "@medusajs/workflows-sdk"
+import { createHook, createWorkflow, WorkflowData, WorkflowResponse } from "@medusajs/workflows-sdk"
 import { deletePromotionsStep } from "../steps"
 
 type WorkflowInput = { ids: string[] }
@@ -6,7 +6,14 @@ type WorkflowInput = { ids: string[] }
 export const deletePromotionsWorkflowId = "delete-promotions"
 export const deletePromotionsWorkflow = createWorkflow(
   deletePromotionsWorkflowId,
-  (input: WorkflowData<WorkflowInput>): WorkflowData<void> => {
-    return deletePromotionsStep(input.ids)
+  (input: WorkflowData<WorkflowInput>) => {
+    const deletedPromotions = deletePromotionsStep(input.ids)
+    const promotionsDeleted = createHook("promotionsDeleted", {
+      ids: input.ids
+    })
+    
+    return new WorkflowResponse(deletedPromotions, {
+      hooks: [promotionsDeleted]
+    })
   }
 )
diff --git a/packages/core/core-flows/src/promotion/workflows/update-campaigns.ts b/packages/core/core-flows/src/promotion/workflows/update-campaigns.ts
index 7566b6da29..af23b93acb 100644
--- a/packages/core/core-flows/src/promotion/workflows/update-campaigns.ts
+++ b/packages/core/core-flows/src/promotion/workflows/update-campaigns.ts
@@ -1,17 +1,26 @@
-import { CampaignDTO, UpdateCampaignDTO } from "@medusajs/types"
+import { AdditionalData, UpdateCampaignDTO } from "@medusajs/types"
 import {
   WorkflowData,
   WorkflowResponse,
+  createHook,
   createWorkflow,
 } from "@medusajs/workflows-sdk"
 import { updateCampaignsStep } from "../steps"
 
-type WorkflowInput = { campaignsData: UpdateCampaignDTO[] }
+type WorkflowInput = { campaignsData: UpdateCampaignDTO[] } & AdditionalData
 
 export const updateCampaignsWorkflowId = "update-campaigns"
 export const updateCampaignsWorkflow = createWorkflow(
   updateCampaignsWorkflowId,
-  (input: WorkflowData<WorkflowInput>): WorkflowResponse<CampaignDTO[]> => {
-    return new WorkflowResponse(updateCampaignsStep(input.campaignsData))
+  (input: WorkflowData<WorkflowInput>) => {
+    const updatedCampaigns = updateCampaignsStep(input.campaignsData)
+    const campaignsUpdated = createHook("campaignsUpdated", {
+      campaigns: updatedCampaigns,
+      additional_data: input.additional_data,
+    })
+
+    return new WorkflowResponse(updatedCampaigns, {
+      hooks: [campaignsUpdated],
+    })
   }
 )
diff --git a/packages/core/core-flows/src/promotion/workflows/update-promotions.ts b/packages/core/core-flows/src/promotion/workflows/update-promotions.ts
index 559b1ea957..43ff820818 100644
--- a/packages/core/core-flows/src/promotion/workflows/update-promotions.ts
+++ b/packages/core/core-flows/src/promotion/workflows/update-promotions.ts
@@ -1,17 +1,29 @@
-import { PromotionDTO, UpdatePromotionDTO } from "@medusajs/types"
+import {
+  AdditionalData,
+  UpdatePromotionDTO,
+} from "@medusajs/types"
 import {
   WorkflowData,
   WorkflowResponse,
+  createHook,
   createWorkflow,
 } from "@medusajs/workflows-sdk"
 import { updatePromotionsStep } from "../steps"
 
-type WorkflowInput = { promotionsData: UpdatePromotionDTO[] }
+type WorkflowInput = { promotionsData: UpdatePromotionDTO[] } & AdditionalData
 
 export const updatePromotionsWorkflowId = "update-promotions"
 export const updatePromotionsWorkflow = createWorkflow(
   updatePromotionsWorkflowId,
-  (input: WorkflowData<WorkflowInput>): WorkflowResponse<PromotionDTO[]> => {
-    return new WorkflowResponse(updatePromotionsStep(input.promotionsData))
+  (input: WorkflowData<WorkflowInput>) => {
+    const updatedPromotions = updatePromotionsStep(input.promotionsData)
+    const promotionsUpdated = createHook("promotionsUpdated", {
+      promotions: updatedPromotions,
+      additional_data: input.additional_data,
+    })
+
+    return new WorkflowResponse(updatedPromotions, {
+      hooks: [promotionsUpdated],
+    })
   }
 )
diff --git a/packages/medusa/src/api/admin/campaigns/[id]/route.ts b/packages/medusa/src/api/admin/campaigns/[id]/route.ts
index ae4b5bd75b..7347ed7bca 100644
--- a/packages/medusa/src/api/admin/campaigns/[id]/route.ts
+++ b/packages/medusa/src/api/admin/campaigns/[id]/route.ts
@@ -10,6 +10,7 @@ import {
 import { refetchCampaign } from "../helpers"
 import { AdminUpdateCampaignType } from "../validators"
 import { MedusaError } from "@medusajs/utils"
+import { AdditionalData } from "@medusajs/types"
 
 export const GET = async (
   req: AuthenticatedMedusaRequest,
@@ -32,19 +33,20 @@ export const GET = async (
 }
 
 export const POST = async (
-  req: AuthenticatedMedusaRequest<AdminUpdateCampaignType>,
+  req: AuthenticatedMedusaRequest<AdminUpdateCampaignType & AdditionalData>,
   res: MedusaResponse
 ) => {
+  const { additional_data, ...rest } = req.validatedBody
   const updateCampaigns = updateCampaignsWorkflow(req.scope)
   const campaignsData = [
     {
       id: req.params.id,
-      ...req.validatedBody,
+      ...rest,
     },
   ]
 
   await updateCampaigns.run({
-    input: { campaignsData },
+    input: { campaignsData, additional_data },
   })
 
   const campaign = await refetchCampaign(
diff --git a/packages/medusa/src/api/admin/campaigns/route.ts b/packages/medusa/src/api/admin/campaigns/route.ts
index 988b7dacba..f98d1369a7 100644
--- a/packages/medusa/src/api/admin/campaigns/route.ts
+++ b/packages/medusa/src/api/admin/campaigns/route.ts
@@ -2,13 +2,14 @@ import {
   AuthenticatedMedusaRequest,
   MedusaResponse,
 } from "../../../types/routing"
-import {createCampaignsWorkflow} from "@medusajs/core-flows"
+import { createCampaignsWorkflow } from "@medusajs/core-flows"
 import {
   ContainerRegistrationKeys,
   remoteQueryObjectFromString,
 } from "@medusajs/utils"
-import {AdminCreateCampaignType} from "./validators"
-import {refetchCampaign} from "./helpers"
+import { AdminCreateCampaignType } from "./validators"
+import { refetchCampaign } from "./helpers"
+import { AdditionalData } from "@medusajs/types"
 
 export const GET = async (
   req: AuthenticatedMedusaRequest,
@@ -36,14 +37,15 @@ export const GET = async (
 }
 
 export const POST = async (
-  req: AuthenticatedMedusaRequest<AdminCreateCampaignType>,
+  req: AuthenticatedMedusaRequest<AdminCreateCampaignType & AdditionalData>,
   res: MedusaResponse
 ) => {
+  const { additional_data, ...rest } = req.validatedBody
   const createCampaigns = createCampaignsWorkflow(req.scope)
-  const campaignsData = [req.validatedBody]
+  const campaignsData = [rest]
 
   const { result } = await createCampaigns.run({
-    input: { campaignsData },
+    input: { campaignsData, additional_data },
     context: {
       requestId: req.requestId,
     },
diff --git a/packages/medusa/src/api/admin/campaigns/validators.ts b/packages/medusa/src/api/admin/campaigns/validators.ts
index ddd0b03612..0dd4a7d160 100644
--- a/packages/medusa/src/api/admin/campaigns/validators.ts
+++ b/packages/medusa/src/api/admin/campaigns/validators.ts
@@ -1,5 +1,5 @@
 import { CampaignBudgetType, isPresent } from "@medusajs/utils"
-import { z } from "zod"
+import { z, ZodObject } from "zod"
 import { createFindParams, createSelectParams } from "../../utils/validators"
 
 export const AdminGetCampaignParams = createSelectParams()
@@ -56,8 +56,8 @@ export const UpdateCampaignBudget = z
   })
   .strict()
 
-export type AdminCreateCampaignType = z.infer<typeof AdminCreateCampaign>
-export const AdminCreateCampaign = z
+export type AdminCreateCampaignType = z.infer<typeof CreateCampaign>
+export const CreateCampaign = z
   .object({
     name: z.string(),
     campaign_identifier: z.string(),
@@ -68,9 +68,22 @@ export const AdminCreateCampaign = z
     promotions: z.array(z.object({ id: z.string() })).optional(),
   })
   .strict()
+export const AdminCreateCampaign = (
+  additionalDataValidator?: ZodObject<any, any>
+) => {
+  if (!additionalDataValidator) {
+    return CreateCampaign.extend({
+      additional_data: z.record(z.unknown()).nullish(),
+    })
+  }
 
-export type AdminUpdateCampaignType = z.infer<typeof AdminUpdateCampaign>
-export const AdminUpdateCampaign = z.object({
+  return CreateCampaign.extend({
+    additional_data: additionalDataValidator,
+  })
+}
+
+export type AdminUpdateCampaignType = z.infer<typeof UpdateCampaign>
+export const UpdateCampaign = z.object({
   name: z.string().optional(),
   campaign_identifier: z.string().optional(),
   description: z.string().nullish(),
@@ -79,3 +92,16 @@ export const AdminUpdateCampaign = z.object({
   ends_at: z.coerce.date().nullish(),
   promotions: z.array(z.object({ id: z.string() })).optional(),
 })
+export const AdminUpdateCampaign = (
+  additionalDataValidator?: ZodObject<any, any>
+) => {
+  if (!additionalDataValidator) {
+    return UpdateCampaign.extend({
+      additional_data: z.record(z.unknown()).nullish(),
+    })
+  }
+
+  return UpdateCampaign.extend({
+    additional_data: additionalDataValidator,
+  })
+}
diff --git a/packages/medusa/src/api/admin/promotions/[id]/route.ts b/packages/medusa/src/api/admin/promotions/[id]/route.ts
index 12badbee95..b3c8c0593b 100644
--- a/packages/medusa/src/api/admin/promotions/[id]/route.ts
+++ b/packages/medusa/src/api/admin/promotions/[id]/route.ts
@@ -16,6 +16,7 @@ import {
   AdminGetPromotionParamsType,
   AdminUpdatePromotionType,
 } from "../validators"
+import { AdditionalData } from "@medusajs/types"
 
 export const GET = async (
   req: AuthenticatedMedusaRequest<AdminGetPromotionParamsType>,
@@ -43,19 +44,20 @@ export const GET = async (
 }
 
 export const POST = async (
-  req: AuthenticatedMedusaRequest<AdminUpdatePromotionType>,
+  req: AuthenticatedMedusaRequest<AdminUpdatePromotionType & AdditionalData>,
   res: MedusaResponse
 ) => {
+  const { additional_data, ...rest } = req.validatedBody
   const updatePromotions = updatePromotionsWorkflow(req.scope)
   const promotionsData = [
     {
       id: req.params.id,
-      ...req.validatedBody,
+      ...rest,
     } as any,
   ]
 
   await updatePromotions.run({
-    input: { promotionsData },
+    input: { promotionsData, additional_data },
   })
 
   const promotion = await refetchPromotion(
diff --git a/packages/medusa/src/api/admin/promotions/route.ts b/packages/medusa/src/api/admin/promotions/route.ts
index 95e20da979..6a0e54f7ab 100644
--- a/packages/medusa/src/api/admin/promotions/route.ts
+++ b/packages/medusa/src/api/admin/promotions/route.ts
@@ -12,6 +12,7 @@ import {
   AdminCreatePromotionType,
   AdminGetPromotionsParamsType,
 } from "./validators"
+import { AdditionalData } from "@medusajs/types"
 
 export const GET = async (
   req: AuthenticatedMedusaRequest<AdminGetPromotionsParamsType>,
@@ -39,14 +40,15 @@ export const GET = async (
 }
 
 export const POST = async (
-  req: AuthenticatedMedusaRequest<AdminCreatePromotionType>,
+  req: AuthenticatedMedusaRequest<AdminCreatePromotionType & AdditionalData>,
   res: MedusaResponse
 ) => {
+  const { additional_data, ...rest } = req.validatedBody
   const createPromotions = createPromotionsWorkflow(req.scope)
-  const promotionsData = [req.validatedBody] as any
+  const promotionsData = [rest] as any
 
   const { result } = await createPromotions.run({
-    input: { promotionsData },
+    input: { promotionsData, additional_data },
   })
 
   const promotion = await refetchPromotion(
diff --git a/packages/medusa/src/api/admin/promotions/validators.ts b/packages/medusa/src/api/admin/promotions/validators.ts
index 8060dbd3da..2a8c8a8310 100644
--- a/packages/medusa/src/api/admin/promotions/validators.ts
+++ b/packages/medusa/src/api/admin/promotions/validators.ts
@@ -11,7 +11,7 @@ import {
   createOperatorMap,
   createSelectParams,
 } from "../../utils/validators"
-import { AdminCreateCampaign } from "../campaigns/validators"
+import { CreateCampaign } from "../campaigns/validators"
 
 export type AdminGetPromotionParamsType = z.infer<
   typeof AdminGetPromotionParams
@@ -155,51 +155,67 @@ const promoRefinement = (promo) => {
   return true
 }
 
-export type AdminCreatePromotionType = z.infer<typeof _AdminCreatePromotion>
-const _AdminCreatePromotion = z
+export type AdminCreatePromotionType = z.infer<typeof CreatePromotion>
+export const CreatePromotion = z
   .object({
     code: z.string(),
     is_automatic: z.boolean().optional(),
     type: z.nativeEnum(PromotionType),
     campaign_id: z.string().nullish(),
-    campaign: AdminCreateCampaign.optional(),
+    campaign: CreateCampaign.optional(),
     application_method: AdminCreateApplicationMethod,
     rules: z.array(AdminCreatePromotionRule).optional(),
   })
   .strict()
 
-export const AdminCreatePromotion = (customSchema?: ZodObject<any, any>) => {
-  const schema = customSchema
-    ? _AdminCreatePromotion.merge(customSchema)
-    : _AdminCreatePromotion
+export const AdminCreatePromotion = (
+  additionalDataValidator?: ZodObject<any, any>
+) => {
+  if (!additionalDataValidator) {
+    return CreatePromotion.extend({
+      additional_data: z.record(z.unknown()).nullish(),
+    }).refine(promoRefinement, {
+      message:
+        "Buyget promotions require at least one buy rule and quantities to be defined",
+    })
+  }
 
-  // In the case of a buyget promotion, we require at least one buy rule and quantities
-  return schema.refine(promoRefinement, {
+  return CreatePromotion.extend({
+    additional_data: additionalDataValidator,
+  }).refine(promoRefinement, {
     message:
       "Buyget promotions require at least one buy rule and quantities to be defined",
   })
 }
 
-export type AdminUpdatePromotionType = z.infer<typeof _AdminUpdatePromotion>
-const _AdminUpdatePromotion = z
+export type AdminUpdatePromotionType = z.infer<typeof UpdatePromotion>
+export const UpdatePromotion = z
   .object({
     code: z.string().optional(),
     is_automatic: z.boolean().optional(),
     type: z.nativeEnum(PromotionType).optional(),
     campaign_id: z.string().nullish(),
-    campaign: AdminCreateCampaign.optional(),
+    campaign: CreateCampaign.optional(),
     application_method: AdminUpdateApplicationMethod.optional(),
     rules: z.array(AdminCreatePromotionRule).optional(),
   })
   .strict()
 
-export const AdminUpdatePromotion = (customSchema?: ZodObject<any, any>) => {
-  const schema = customSchema
-    ? _AdminUpdatePromotion.merge(customSchema)
-    : _AdminUpdatePromotion
+export const AdminUpdatePromotion = (
+  additionalDataValidator?: ZodObject<any, any>
+) => {
+  if (!additionalDataValidator) {
+    return UpdatePromotion.extend({
+      additional_data: z.record(z.unknown()).nullish(),
+    }).refine(promoRefinement, {
+      message:
+        "Buyget promotions require at least one buy rule and quantities to be defined",
+    })
+  }
 
-  // In the case of a buyget promotion, we require at least one buy rule and quantities
-  return schema.refine(promoRefinement, {
+  return UpdatePromotion.extend({
+    additional_data: additionalDataValidator,
+  }).refine(promoRefinement, {
     message:
       "Buyget promotions require at least one buy rule and quantities to be defined",
   })