diff --git a/packages/medusa/src/api/admin/campaigns/validators.ts b/packages/medusa/src/api/admin/campaigns/validators.ts
index 0dd4a7d160..559aaadb32 100644
--- a/packages/medusa/src/api/admin/campaigns/validators.ts
+++ b/packages/medusa/src/api/admin/campaigns/validators.ts
@@ -1,6 +1,10 @@
 import { CampaignBudgetType, isPresent } from "@medusajs/utils"
-import { z, ZodObject } from "zod"
-import { createFindParams, createSelectParams } from "../../utils/validators"
+import { z } from "zod"
+import {
+  createFindParams,
+  createSelectParams,
+  WithAdditionalData,
+} from "../../utils/validators"
 
 export const AdminGetCampaignParams = createSelectParams()
 
@@ -68,19 +72,7 @@ export const CreateCampaign = 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(),
-    })
-  }
-
-  return CreateCampaign.extend({
-    additional_data: additionalDataValidator,
-  })
-}
+export const AdminCreateCampaign = WithAdditionalData(CreateCampaign)
 
 export type AdminUpdateCampaignType = z.infer<typeof UpdateCampaign>
 export const UpdateCampaign = z.object({
@@ -92,16 +84,4 @@ export const UpdateCampaign = 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,
-  })
-}
+export const AdminUpdateCampaign = WithAdditionalData(UpdateCampaign)
diff --git a/packages/medusa/src/api/admin/customers/validators.ts b/packages/medusa/src/api/admin/customers/validators.ts
index 09dffbdb1b..5f1b19cbe8 100644
--- a/packages/medusa/src/api/admin/customers/validators.ts
+++ b/packages/medusa/src/api/admin/customers/validators.ts
@@ -1,8 +1,9 @@
-import { z, ZodObject } from "zod"
+import { z } from "zod"
 import {
   createFindParams,
   createOperatorMap,
   createSelectParams,
+  WithAdditionalData,
 } from "../../utils/validators"
 
 export const AdminCustomerParams = createSelectParams()
@@ -50,19 +51,7 @@ export const CreateCustomer = z.object({
   phone: z.string().nullish(),
   metadata: z.record(z.unknown()).nullish(),
 })
-export const AdminCreateCustomer = (
-  additionalDataValidator?: ZodObject<any, any>
-) => {
-  if (!additionalDataValidator) {
-    return CreateCustomer.extend({
-      additional_data: z.record(z.unknown()).nullish(),
-    })
-  }
-
-  return CreateCustomer.extend({
-    additional_data: additionalDataValidator,
-  })
-}
+export const AdminCreateCustomer = WithAdditionalData(CreateCustomer)
 
 export const UpdateCustomer = z.object({
   email: z.string().email().nullish(),
@@ -72,19 +61,7 @@ export const UpdateCustomer = z.object({
   phone: z.string().nullish(),
   metadata: z.record(z.unknown()).nullish(),
 })
-export const AdminUpdateCustomer = (
-  additionalDataValidator?: ZodObject<any, any>
-) => {
-  if (!additionalDataValidator) {
-    return UpdateCustomer.extend({
-      additional_data: z.record(z.unknown()).nullish(),
-    })
-  }
-
-  return UpdateCustomer.extend({
-    additional_data: additionalDataValidator,
-  })
-}
+export const AdminUpdateCustomer = WithAdditionalData(UpdateCustomer)
 
 export const CreateCustomerAddress = z.object({
   address_name: z.string().nullish(),
@@ -102,19 +79,9 @@ export const CreateCustomerAddress = z.object({
   phone: z.string().nullish(),
   metadata: z.record(z.unknown()).nullish(),
 })
-export const AdminCreateCustomerAddress = (
-  additionalDataValidator?: ZodObject<any, any>
-) => {
-  if (!additionalDataValidator) {
-    return CreateCustomerAddress.extend({
-      additional_data: z.record(z.unknown()).nullish(),
-    })
-  }
-
-  return CreateCustomerAddress.extend({
-    additional_data: additionalDataValidator,
-  })
-}
+export const AdminCreateCustomerAddress = WithAdditionalData(
+  CreateCustomerAddress
+)
 
 export const AdminUpdateCustomerAddress = AdminCreateCustomerAddress
 
diff --git a/packages/medusa/src/api/admin/products/validators.ts b/packages/medusa/src/api/admin/products/validators.ts
index 6eb2ed9315..ccbbf9973f 100644
--- a/packages/medusa/src/api/admin/products/validators.ts
+++ b/packages/medusa/src/api/admin/products/validators.ts
@@ -4,11 +4,12 @@ import {
   GetProductsParams,
   transformProductParams,
 } from "../../utils/common-validators"
-import { z, ZodObject } from "zod"
+import { z } from "zod"
 import {
   createFindParams,
   createOperatorMap,
   createSelectParams,
+  WithAdditionalData,
 } from "../../utils/validators"
 
 const statusEnum = z.nativeEnum(ProductStatus)
@@ -90,19 +91,7 @@ export const CreateProductOption = z.object({
   title: z.string(),
   values: z.array(z.string()),
 })
-export const AdminCreateProductOption = (
-  additionalDataValidator?: ZodObject<any, any>
-) => {
-  if (!additionalDataValidator) {
-    return CreateProductOption.extend({
-      additional_data: z.record(z.unknown()).nullish(),
-    })
-  }
-
-  return CreateProductOption.extend({
-    additional_data: additionalDataValidator,
-  })
-}
+export const AdminCreateProductOption = WithAdditionalData(CreateProductOption)
 
 export type AdminUpdateProductOptionType = z.infer<typeof UpdateProductOption>
 export const UpdateProductOption = z.object({
@@ -111,19 +100,7 @@ export const UpdateProductOption = z.object({
   values: z.array(z.string()).optional(),
 })
 
-export const AdminUpdateProductOption = (
-  additionalDataValidator?: ZodObject<any, any>
-) => {
-  if (!additionalDataValidator) {
-    return UpdateProductOption.extend({
-      additional_data: z.record(z.unknown()).nullish(),
-    })
-  }
-
-  return UpdateProductOption.extend({
-    additional_data: additionalDataValidator,
-  })
-}
+export const AdminUpdateProductOption = WithAdditionalData(UpdateProductOption)
 
 export type AdminCreateVariantPriceType = z.infer<
   typeof AdminCreateVariantPrice
@@ -185,19 +162,8 @@ export const CreateProductVariant = z
       .optional(),
   })
   .strict()
-export const AdminCreateProductVariant = (
-  additionalDataValidator?: ZodObject<any, any>
-) => {
-  if (!additionalDataValidator) {
-    return CreateProductVariant.extend({
-      additional_data: z.record(z.string()).optional(),
-    })
-  }
-
-  return CreateProductVariant.extend({
-    additional_data: additionalDataValidator,
-  })
-}
+export const AdminCreateProductVariant =
+  WithAdditionalData(CreateProductVariant)
 
 export type AdminUpdateProductVariantType = z.infer<typeof UpdateProductVariant>
 export const UpdateProductVariant = z
@@ -225,19 +191,8 @@ export const UpdateProductVariant = z
   })
   .strict()
 
-export const AdminUpdateProductVariant = (
-  additionalDataValidator?: ZodObject<any, any>
-) => {
-  if (!additionalDataValidator) {
-    return UpdateProductVariant.extend({
-      additional_data: z.record(z.string()).optional(),
-    })
-  }
-
-  return UpdateProductVariant.extend({
-    additional_data: additionalDataValidator,
-  })
-}
+export const AdminUpdateProductVariant =
+  WithAdditionalData(UpdateProductVariant)
 
 export type AdminBatchUpdateProductVariantType = z.infer<
   typeof AdminBatchUpdateProductVariant
@@ -281,19 +236,7 @@ export const CreateProduct = z
   })
   .strict()
 
-export const AdminCreateProduct = (
-  additionalDataValidator?: ZodObject<any, any>
-) => {
-  if (!additionalDataValidator) {
-    return CreateProduct.extend({
-      additional_data: z.record(z.unknown()).nullish(),
-    })
-  }
-
-  return CreateProduct.extend({
-    additional_data: additionalDataValidator,
-  })
-}
+export const AdminCreateProduct = WithAdditionalData(CreateProduct)
 
 export type AdminUpdateProductType = z.infer<typeof UpdateProduct>
 export const UpdateProduct = z
@@ -326,19 +269,7 @@ export const UpdateProduct = z
   })
   .strict()
 
-export const AdminUpdateProduct = (
-  additionalDataValidator?: ZodObject<any, any>
-) => {
-  if (!additionalDataValidator) {
-    return UpdateProduct.extend({
-      additional_data: z.record(z.unknown()).nullish(),
-    })
-  }
-
-  return UpdateProduct.extend({
-    additional_data: additionalDataValidator,
-  })
-}
+export const AdminUpdateProduct = WithAdditionalData(UpdateProduct)
 
 export type AdminBatchUpdateProductType = z.infer<
   typeof AdminBatchUpdateProduct
diff --git a/packages/medusa/src/api/admin/promotions/validators.ts b/packages/medusa/src/api/admin/promotions/validators.ts
index 2a8c8a8310..80ecbf41c0 100644
--- a/packages/medusa/src/api/admin/promotions/validators.ts
+++ b/packages/medusa/src/api/admin/promotions/validators.ts
@@ -5,11 +5,12 @@ import {
   PromotionRuleOperator,
   PromotionType,
 } from "@medusajs/utils"
-import { z, ZodObject } from "zod"
+import { z } from "zod"
 import {
   createFindParams,
   createOperatorMap,
   createSelectParams,
+  WithAdditionalData,
 } from "../../utils/validators"
 import { CreateCampaign } from "../campaigns/validators"
 
@@ -168,25 +169,15 @@ export const CreatePromotion = z
   })
   .strict()
 
-export const AdminCreatePromotion = (
-  additionalDataValidator?: ZodObject<any, any>
-) => {
-  if (!additionalDataValidator) {
-    return CreatePromotion.extend({
-      additional_data: z.record(z.unknown()).nullish(),
-    }).refine(promoRefinement, {
+export const AdminCreatePromotion = WithAdditionalData(
+  CreatePromotion,
+  (schema) => {
+    return schema.refine(promoRefinement, {
       message:
         "Buyget promotions require at least one buy rule and quantities to be defined",
     })
   }
-
-  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 UpdatePromotion>
 export const UpdatePromotion = z
@@ -201,22 +192,12 @@ export const UpdatePromotion = z
   })
   .strict()
 
-export const AdminUpdatePromotion = (
-  additionalDataValidator?: ZodObject<any, any>
-) => {
-  if (!additionalDataValidator) {
-    return UpdatePromotion.extend({
-      additional_data: z.record(z.unknown()).nullish(),
-    }).refine(promoRefinement, {
+export const AdminUpdatePromotion = WithAdditionalData(
+  UpdatePromotion,
+  (schema) => {
+    return schema.refine(promoRefinement, {
       message:
         "Buyget promotions require at least one buy rule and quantities to be defined",
     })
   }
-
-  return UpdatePromotion.extend({
-    additional_data: additionalDataValidator,
-  }).refine(promoRefinement, {
-    message:
-      "Buyget promotions require at least one buy rule and quantities to be defined",
-  })
-}
+)