diff --git a/src/v0/destinations/sfmc/config.js b/src/v0/destinations/sfmc/config.js
index 1b1f5c323b..1c89c04112 100644
--- a/src/v0/destinations/sfmc/config.js
+++ b/src/v0/destinations/sfmc/config.js
@@ -7,6 +7,10 @@ const ENDPOINTS = {
   EVENT: 'rest.marketingcloudapis.com/interaction/v1/events',
 };
 
+const ACCESS_TOKEN_CACHE_TTL = process.env.SFMC_ACCESS_TOKEN_CACHE_TTL
+  ? parseInt(process.env.SFMC_ACCESS_TOKEN_CACHE_TTL, 10)
+  : 1000;
+
 const CONFIG_CATEGORIES = {
   IDENTIFY: {
     type: 'identify',
@@ -24,4 +28,5 @@ module.exports = {
   ENDPOINTS,
   MAPPING_CONFIG,
   CONFIG_CATEGORIES,
+  ACCESS_TOKEN_CACHE_TTL,
 };
diff --git a/src/v0/destinations/sfmc/transform.js b/src/v0/destinations/sfmc/transform.js
index a433179f9c..d20a9ed40d 100644
--- a/src/v0/destinations/sfmc/transform.js
+++ b/src/v0/destinations/sfmc/transform.js
@@ -6,10 +6,19 @@ const {
   InstrumentationError,
   isDefinedAndNotNull,
   isEmpty,
+  MappedToDestinationKey,
+  GENERIC_TRUE_VALUES,
+  PlatformError,
 } = require('@rudderstack/integrations-lib');
+const get = require('get-value');
 const { EventType } = require('../../../constants');
 const { handleHttpRequest } = require('../../../adapters/network');
-const { CONFIG_CATEGORIES, MAPPING_CONFIG, ENDPOINTS } = require('./config');
+const {
+  CONFIG_CATEGORIES,
+  MAPPING_CONFIG,
+  ENDPOINTS,
+  ACCESS_TOKEN_CACHE_TTL,
+} = require('./config');
 const {
   removeUndefinedAndNullValues,
   getFieldValueFromMessage,
@@ -21,12 +30,15 @@ const {
   toTitleCase,
   getHashFromArray,
   simpleProcessRouterDest,
+  getDestinationExternalIDInfoForRetl,
 } = require('../../util');
 const { getDynamicErrorType } = require('../../../adapters/utils/networkUtils');
 const { isHttpStatusSuccess } = require('../../util');
 const tags = require('../../util/tags');
 const { JSON_MIME_TYPE } = require('../../util/constant');
+const Cache = require('../../util/cache');
 
+const accessTokenCache = new Cache(ACCESS_TOKEN_CACHE_TTL);
 const CONTACT_KEY_KEY = 'Contact Key';
 
 // DOC: https://developer.salesforce.com/docs/atlas.en-us.mc-app-development.meta/mc-app-development/access-token-s2s.htm
@@ -271,11 +283,41 @@ const responseBuilderSimple = async ({ message, destination, metadata }, categor
   throw new ConfigurationError(`Event type '${category.type}' not supported`);
 };
 
+const retlResponseBuilder = async (message, destination, metadata) => {
+  const { clientId, clientSecret, subDomain, externalKey } = destination.Config;
+  const token = await accessTokenCache.get(metadata.destinationId, () =>
+    getToken(clientId, clientSecret, subDomain, metadata),
+  );
+  const { destinationExternalId, objectType, identifierType } = getDestinationExternalIDInfoForRetl(
+    message,
+    'SFMC',
+  );
+  if (objectType?.toLowerCase() === 'data extension') {
+    const response = defaultRequestConfig();
+    response.method = defaultPutRequestConfig.requestMethod;
+    response.endpoint = `https://${subDomain}.${ENDPOINTS.INSERT_CONTACTS}${externalKey}/rows/${identifierType}:${destinationExternalId}`;
+    response.headers = {
+      'Content-Type': JSON_MIME_TYPE,
+      Authorization: `Bearer ${token}`,
+    };
+    response.body.JSON = {
+      values: {
+        ...message.traits,
+      },
+    };
+    return response;
+  }
+  throw new PlatformError('Unsupported object type for rETL use case');
+};
+
 const processEvent = async ({ message, destination, metadata }) => {
   if (!message.type) {
     throw new InstrumentationError('Event type is required');
   }
-
+  const mappedToDestination = get(message, MappedToDestinationKey);
+  if (mappedToDestination && GENERIC_TRUE_VALUES.includes(mappedToDestination?.toString())) {
+    return retlResponseBuilder(message, destination, metadata);
+  }
   const messageType = message.type.toLowerCase();
   let category;
   // only accept track and identify calls
diff --git a/test/integrations/destinations/sfmc/processor/data.ts b/test/integrations/destinations/sfmc/processor/data.ts
index 883032d223..e8d9375e43 100644
--- a/test/integrations/destinations/sfmc/processor/data.ts
+++ b/test/integrations/destinations/sfmc/processor/data.ts
@@ -2216,4 +2216,182 @@ export const data = [
       },
     },
   },
+  {
+    name: 'sfmc',
+    description: 'success scenario for rETL use case',
+    feature: 'processor',
+    id: 'sfmcRetlTestCase-1',
+    module: 'destination',
+    version: 'v0',
+    input: {
+      request: {
+        body: [
+          {
+            message: {
+              type: 'identify',
+              traits: {
+                key2: 'value2',
+                key3: 'value3',
+                key4: 'value4',
+              },
+              userId: 'someRandomEmail@test.com',
+              channel: 'sources',
+              context: {
+                sources: {
+                  job_id: '2kbW13URkJ6jfeo5SbFcC7ecP6d',
+                  version: 'v1.53.1',
+                  job_run_id: 'cqtl6pfqskjtoh6t24i0',
+                  task_run_id: 'cqtl6pfqskjtoh6t24ig',
+                },
+                externalId: [
+                  {
+                    id: 'someRandomEmail@test.com',
+                    type: 'SFMC-data extension',
+                    identifierType: 'key1',
+                  },
+                ],
+                mappedToDestination: 'true',
+              },
+              recordId: '3',
+              rudderId: 'c5741aa5-b038-4079-99ec-e4169eb0d9e2',
+              messageId: '95a1b214-03d9-4824-8ada-bc6ef2398100',
+            },
+            destination: {
+              ID: '1pYpzzvcn7AQ2W9GGIAZSsN6Mfq',
+              Name: 'SFMC',
+              Config: {
+                clientId: 'dummyClientId',
+                clientSecret: 'dummyClientSecret',
+                subDomain: 'vcn7AQ2W9GGIAZSsN6Mfq',
+                createOrUpdateContacts: false,
+                externalKey: 'externalKey',
+              },
+              Enabled: true,
+              Transformations: [],
+            },
+            metadata: {
+              destinationId: 'destId',
+              jobId: 'jobid1',
+            },
+          },
+        ],
+      },
+    },
+    output: {
+      response: {
+        status: 200,
+        body: [
+          {
+            metadata: {
+              destinationId: 'destId',
+              jobId: 'jobid1',
+            },
+            output: {
+              body: {
+                FORM: {},
+                JSON: {
+                  values: {
+                    key2: 'value2',
+                    key3: 'value3',
+                    key4: 'value4',
+                  },
+                },
+                JSON_ARRAY: {},
+                XML: {},
+              },
+              endpoint:
+                'https://vcn7AQ2W9GGIAZSsN6Mfq.rest.marketingcloudapis.com/hub/v1/dataevents/key:externalKey/rows/key1:someRandomEmail@test.com',
+              files: {},
+              headers: {
+                Authorization: 'Bearer yourAuthToken',
+                'Content-Type': 'application/json',
+              },
+              method: 'PUT',
+              params: {},
+              type: 'REST',
+              userId: '',
+              version: '1',
+            },
+            statusCode: 200,
+          },
+        ],
+      },
+    },
+  },
+  {
+    name: 'sfmc',
+    description: 'failure scenario for rETL use case when wrong object type is used',
+    feature: 'processor',
+    id: 'sfmcRetlTestCase-2',
+    module: 'destination',
+    version: 'v0',
+    input: {
+      request: {
+        body: [
+          {
+            message: {
+              type: 'identify',
+              traits: {
+                key2: 'value2',
+                key3: 'value3',
+                key4: 'value4',
+              },
+              userId: 'someRandomEmail@test.com',
+              channel: 'sources',
+              context: {
+                externalId: [
+                  {
+                    id: 'someRandomEmail@test.com',
+                    type: 'SFMC-contacts',
+                    identifierType: 'key1',
+                  },
+                ],
+                mappedToDestination: 'true',
+              },
+            },
+            destination: {
+              ID: '1pYpzzvcn7AQ2W9GGIAZSsN6Mfq',
+              Name: 'SFMC',
+              Config: {
+                clientId: 'dummyClientId',
+                clientSecret: 'dummyClientSecret',
+                subDomain: 'vcn7AQ2W9GGIAZSsN6Mfq',
+                createOrUpdateContacts: false,
+                externalKey: 'externalKey',
+              },
+              Enabled: true,
+              Transformations: [],
+            },
+            metadata: {
+              destinationId: 'destId',
+              jobId: 'jobid1',
+            },
+          },
+        ],
+      },
+    },
+    output: {
+      response: {
+        status: 200,
+        body: [
+          {
+            error: 'Unsupported object type for rETL use case',
+            metadata: {
+              destinationId: 'destId',
+              jobId: 'jobid1',
+            },
+            statTags: {
+              destType: 'SFMC',
+              destinationId: 'destId',
+              errorCategory: 'platform',
+              feature: 'processor',
+              implementation: 'native',
+              module: 'destination',
+            },
+            statusCode: 400,
+          },
+        ],
+      },
+    },
+  },
 ];