diff --git a/src/v1/destinations/iterable/networkHandler.ts b/src/v1/destinations/iterable/networkHandler.ts
index b409facc4f..06ab77b317 100644
--- a/src/v1/destinations/iterable/networkHandler.ts
+++ b/src/v1/destinations/iterable/networkHandler.ts
@@ -1,25 +1,25 @@
 import { prepareProxyRequest, proxyRequest } from '../../../adapters/network';
 import { processAxiosResponse } from '../../../adapters/utils/networkUtils';
 import { BULK_ENDPOINTS } from '../../../v0/destinations/iterable/config';
-import { CommonStrategy } from './commonStrategy';
-import { TrackIdentifyStrategy } from './trackIdentifyStrategy';
+import { GenericStrategy } from './strategies/generic';
+import { TrackIdentifyStrategy } from './strategies/track-identify';
 
-interface ResponseParams {
+type ResponseParams = {
   destinationRequest: {
     endpoint: string;
   };
-}
+};
 
 const strategyRegistry: { [key: string]: any } = {
   [TrackIdentifyStrategy.name]: new TrackIdentifyStrategy(),
-  [CommonStrategy.name]: new CommonStrategy(),
+  [GenericStrategy.name]: new GenericStrategy(),
 };
 
 const getResponseStrategy = (endpoint: string) => {
   if (BULK_ENDPOINTS.some((path) => endpoint.includes(path))) {
     return strategyRegistry[TrackIdentifyStrategy.name];
   }
-  return strategyRegistry[CommonStrategy.name];
+  return strategyRegistry[GenericStrategy.name];
 };
 
 const responseHandler = (responseParams: ResponseParams) => {
diff --git a/src/v1/destinations/iterable/responseStrategy.ts b/src/v1/destinations/iterable/strategies/base.ts
similarity index 51%
rename from src/v1/destinations/iterable/responseStrategy.ts
rename to src/v1/destinations/iterable/strategies/base.ts
index 9c2d1eeb40..348bfe7fc7 100644
--- a/src/v1/destinations/iterable/responseStrategy.ts
+++ b/src/v1/destinations/iterable/strategies/base.ts
@@ -1,14 +1,12 @@
-import { CommonResponse } from './type';
-
-const { isHttpStatusSuccess } = require('../../../v0/util/index');
-const { TransformerProxyError } = require('../../../v0/util/errorTypes');
-const { getDynamicErrorType } = require('../../../adapters/utils/networkUtils');
-const tags = require('../../../v0/util/tags');
-
-class ResponseStrategy {
-  handleResponse(responseParams: {
-    destinationResponse: { status: number; response: CommonResponse };
-  }): void {
+import { TAG_NAMES } from '@rudderstack/integrations-lib';
+import { getDynamicErrorType } from '../../../../adapters/utils/networkUtils';
+import { isHttpStatusSuccess } from '../../../../v0/util';
+import { TransformerProxyError } from '../../../../v0/util/errorTypes';
+import { DestinationResponse, ResponseParams } from '../types';
+
+// Base strategy is the base class for all strategies in Iterable destination
+class BaseStrategy {
+  handleResponse(responseParams: { destinationResponse: DestinationResponse }): void {
     const { destinationResponse } = responseParams;
     const { status } = destinationResponse;
 
@@ -22,14 +20,12 @@ class ResponseStrategy {
     return this.handleSuccess(responseParams);
   }
 
-  handleError(responseParams): void {
+  handleError(responseParams: ResponseParams): void {
     const { destinationResponse, rudderJobMetadata } = responseParams;
     const { response, status } = destinationResponse;
-    const errorMessage =
-      JSON.stringify(response.params) ||
-      JSON.stringify(response.msg) ||
-      JSON.stringify(response.message) ||
-      'unknown error format';
+    // @ts-expect-error: not sure if `response.message` is correct or needed
+    const responseMessage = response.params || response.msg || response.message;
+    const errorMessage = JSON.stringify(responseMessage) || 'unknown error format';
 
     const responseWithIndividualEvents = rudderJobMetadata.map((metadata) => ({
       statusCode: status,
@@ -40,7 +36,7 @@ class ResponseStrategy {
     throw new TransformerProxyError(
       `ITERABLE: Error transformer proxy during ITERABLE response transformation. ${errorMessage}`,
       status,
-      { [tags.TAG_NAMES.ERROR_TYPE]: getDynamicErrorType(status) },
+      { [TAG_NAMES.ERROR_TYPE]: getDynamicErrorType(status) },
       destinationResponse,
       '',
       responseWithIndividualEvents,
@@ -52,4 +48,4 @@ class ResponseStrategy {
   }
 }
 
-export { ResponseStrategy };
+export { BaseStrategy };
diff --git a/src/v1/destinations/iterable/commonStrategy.ts b/src/v1/destinations/iterable/strategies/generic.ts
similarity index 54%
rename from src/v1/destinations/iterable/commonStrategy.ts
rename to src/v1/destinations/iterable/strategies/generic.ts
index 5d6aa2a892..2702875610 100644
--- a/src/v1/destinations/iterable/commonStrategy.ts
+++ b/src/v1/destinations/iterable/strategies/generic.ts
@@ -1,17 +1,11 @@
-import { CommonResponse } from './type';
+import { BaseStrategy } from './base';
+import { DestinationResponse, SuccessResponse } from '../types';
 
-const { ResponseStrategy } = require('./responseStrategy');
-
-class CommonStrategy extends ResponseStrategy {
+class GenericStrategy extends BaseStrategy {
   handleSuccess(responseParams: {
-    destinationResponse: { status: number; response: CommonResponse };
+    destinationResponse: DestinationResponse;
     rudderJobMetadata: any[];
-  }): {
-    status: number;
-    message: string;
-    destinationResponse: { status: number; response: CommonResponse };
-    response: { statusCode: number; metadata: any; error: string }[];
-  } {
+  }): SuccessResponse {
     const { destinationResponse, rudderJobMetadata } = responseParams;
     const { status } = destinationResponse;
 
@@ -30,4 +24,4 @@ class CommonStrategy extends ResponseStrategy {
   }
 }
 
-export { CommonStrategy };
+export { GenericStrategy };
diff --git a/src/v1/destinations/iterable/trackIdentifyStrategy.ts b/src/v1/destinations/iterable/strategies/track-identify.ts
similarity index 58%
rename from src/v1/destinations/iterable/trackIdentifyStrategy.ts
rename to src/v1/destinations/iterable/strategies/track-identify.ts
index 5ca5d4ae84..7c242f3ac7 100644
--- a/src/v1/destinations/iterable/trackIdentifyStrategy.ts
+++ b/src/v1/destinations/iterable/strategies/track-identify.ts
@@ -1,36 +1,19 @@
-import { ResponseStrategy } from './responseStrategy';
-import { checkIfEventIsAbortableAndExtractErrorMessage } from '../../../v0/destinations/iterable/util';
-import { CommonResponse } from './type';
+import { BaseStrategy } from './base';
+import { DestinationResponse, ResponseParams, Response } from '../types';
+import { checkIfEventIsAbortableAndExtractErrorMessage } from '../../../../v0/destinations/iterable/util';
 
-interface ResponseParams {
-  destinationResponse: { status: number; response: CommonResponse };
-  rudderJobMetadata: any[];
-  destinationRequest: {
-    body: {
-      JSON: {
-        events?: any[];
-        users?: any[];
-      };
-    };
-  };
-}
-
-class TrackIdentifyStrategy extends ResponseStrategy {
+class TrackIdentifyStrategy extends BaseStrategy {
   handleSuccess(responseParams: ResponseParams): {
     status: number;
     message: string;
-    destinationResponse: { status: number; response: CommonResponse };
-    response: Array<{ statusCode: number; metadata: any; error: string }>;
+    destinationResponse: DestinationResponse;
+    response: Response[];
   } {
     const { destinationResponse, rudderJobMetadata, destinationRequest } = responseParams;
     const { status } = destinationResponse;
-    const responseWithIndividualEvents: Array<{
-      statusCode: number;
-      metadata: any;
-      error: string;
-    }> = [];
+    const responseWithIndividualEvents: Response[] = [];
 
-    const { events, users } = destinationRequest.body.JSON;
+    const { events, users } = destinationRequest?.body.JSON || {};
     const finalData = events || users;
 
     if (finalData) {
diff --git a/src/v1/destinations/iterable/type.ts b/src/v1/destinations/iterable/type.ts
deleted file mode 100644
index e29e6236e6..0000000000
--- a/src/v1/destinations/iterable/type.ts
+++ /dev/null
@@ -1,26 +0,0 @@
-interface FailedUpdates {
-  invalidEmails?: string[];
-  invalidUserIds?: string[];
-  notFoundEmails?: string[];
-  notFoundUserIds?: string[];
-  invalidDataEmails?: string[];
-  invalidDataUserIds?: string[];
-  conflictEmails?: string[];
-  conflictUserIds?: string[];
-  forgottenEmails?: string[];
-  forgottenUserIds?: string[];
-}
-
-export interface CommonResponse {
-  msg?: string;
-  code?: string;
-  params?: Record<string, unknown>;
-  successCount?: number;
-  failCount?: number;
-  invalidEmails?: string[];
-  invalidUserIds?: string[];
-  filteredOutFields?: string[];
-  createdFields?: string[];
-  disallowedEventNames?: string[];
-  failedUpdates?: FailedUpdates;
-}
diff --git a/src/v1/destinations/iterable/types.ts b/src/v1/destinations/iterable/types.ts
new file mode 100644
index 0000000000..65f5a3416f
--- /dev/null
+++ b/src/v1/destinations/iterable/types.ts
@@ -0,0 +1,57 @@
+type FailedUpdates = {
+  invalidEmails?: string[];
+  invalidUserIds?: string[];
+  notFoundEmails?: string[];
+  notFoundUserIds?: string[];
+  invalidDataEmails?: string[];
+  invalidDataUserIds?: string[];
+  conflictEmails?: string[];
+  conflictUserIds?: string[];
+  forgottenEmails?: string[];
+  forgottenUserIds?: string[];
+};
+
+export type GeneralApiResponse = {
+  msg?: string;
+  code?: string;
+  params?: Record<string, unknown>;
+  successCount?: number;
+  failCount?: number;
+  invalidEmails?: string[];
+  invalidUserIds?: string[];
+  filteredOutFields?: string[];
+  createdFields?: string[];
+  disallowedEventNames?: string[];
+  failedUpdates?: FailedUpdates;
+};
+
+export type DestinationResponse = {
+  status: number;
+  response: GeneralApiResponse;
+};
+
+export type ResponseParams = {
+  destinationResponse: DestinationResponse;
+  rudderJobMetadata: any[];
+  destinationRequest?: {
+    body: {
+      JSON: {
+        events?: any[];
+        users?: any[];
+      };
+    };
+  };
+};
+
+export type Response = {
+  statusCode: number;
+  metadata: any;
+  error: string;
+};
+
+export type SuccessResponse = {
+  status: number;
+  message: string;
+  destinationResponse: DestinationResponse;
+  response: Response[];
+};
diff --git a/test/integrations/destinations/iterable/dataDelivery/business.ts b/test/integrations/destinations/iterable/dataDelivery/business.ts
index ec40c29b40..df75c8fd1d 100644
--- a/test/integrations/destinations/iterable/dataDelivery/business.ts
+++ b/test/integrations/destinations/iterable/dataDelivery/business.ts
@@ -499,7 +499,7 @@ export const testScenariosForV1API: ProxyV1TestData[] = [
             status: 400,
             statTags,
             message:
-              'ITERABLE: Error transformer proxy during ITERABLE response transformation. null',
+              'ITERABLE: Error transformer proxy during ITERABLE response transformation. "Invalid currentEmail sayan"',
             response: [
               {
                 statusCode: 400,
@@ -596,7 +596,7 @@ export const testScenariosForV1API: ProxyV1TestData[] = [
             status: 400,
             statTags,
             message:
-              'ITERABLE: Error transformer proxy during ITERABLE response transformation. null',
+              'ITERABLE: Error transformer proxy during ITERABLE response transformation. "Invalid email: sayan"',
             response: [
               {
                 statusCode: 400,