diff --git a/modules/mobkoiBidAdapter.js b/modules/mobkoiBidAdapter.js
index 09528d2f7df..ec5337447ed 100644
--- a/modules/mobkoiBidAdapter.js
+++ b/modules/mobkoiBidAdapter.js
@@ -1,7 +1,7 @@
 import { ortbConverter } from '../libraries/ortbConverter/converter.js';
 import { registerBidder } from '../src/adapters/bidderFactory.js';
 import { BANNER } from '../src/mediaTypes.js';
-import { _each, replaceMacros, deepAccess, deepSetValue, logError } from '../src/utils.js';
+import { deepAccess, deepSetValue, logError } from '../src/utils.js';
 
 const BIDDER_CODE = 'mobkoi';
 const GVL_ID = 898;
@@ -13,18 +13,9 @@ const PUBLISHER_PARAMS = {
    * The name of the parameter that the publisher can use to specify the ad server endpoint.
    */
   PARAM_NAME_AD_SERVER_BASE_URL: 'adServerBaseUrl',
-  PARAM_NAME_PUBLISHER_ID: 'publisherId',
   PARAM_NAME_PLACEMENT_ID: 'placementId',
 }
 
-/**
- * The list of ORTB response fields that are used in the macros. Field
- * replacement is self-implemented in the adapter. Use dot-notated path for
- * nested fields. For example, 'ad.ext.adomain'. For more information, visit
- * https://www.npmjs.com/package/dset and https://www.npmjs.com/package/dlv.
- */
-const ORTB_RESPONSE_FIELDS_SUPPORT_MACROS = ['adm', 'nurl', 'lurl'];
-
 export const converter = ortbConverter({
   context: {
     netRevenue: true,
@@ -35,7 +26,6 @@ export const converter = ortbConverter({
     const prebidBidRequest = context.bidRequests[0];
 
     ortbRequest.id = utils.getOrtbId(prebidBidRequest);
-    deepSetValue(ortbRequest, 'site.publisher.id', utils.getPublisherId(prebidBidRequest));
     deepSetValue(ortbRequest, 'site.publisher.ext.adServerBaseUrl', utils.getAdServerEndpointBaseUrl(prebidBidRequest));
     // We only support one impression per request.
     deepSetValue(ortbRequest, 'imp.0.tagid', utils.getPlacementId(prebidBidRequest));
@@ -44,8 +34,6 @@ export const converter = ortbConverter({
     return ortbRequest;
   },
   bidResponse(buildPrebidBidResponse, ortbBidResponse, context) {
-    utils.replaceAllMacrosInPlace(ortbBidResponse, context);
-
     const prebidBid = buildPrebidBidResponse(ortbBidResponse, context);
     utils.addCustomFieldsToPrebidBidResponse(prebidBid, ortbBidResponse);
     return prebidBid;
@@ -61,16 +49,6 @@ export const spec = {
    * Determines whether or not the given bid request is valid.
    */
   isBidRequestValid(bid) {
-    if (
-      !deepAccess(bid, `params.${PUBLISHER_PARAMS.PARAM_NAME_PUBLISHER_ID}`) &&
-      !deepAccess(bid, 'ortb2.site.publisher.id')
-    ) {
-      logError(`The ${PUBLISHER_PARAMS.PARAM_NAME_PUBLISHER_ID} field is required in the bid request. ` +
-        'Please follow the setup guideline to set the publisher ID field.'
-      );
-      return false;
-    }
-
     if (
       !deepAccess(bid, `params.${PUBLISHER_PARAMS.PARAM_NAME_PLACEMENT_ID}`)
     ) {
@@ -176,43 +154,6 @@ export const utils = {
     return placementId;
   },
 
-  /**
-   * !IMPORTANT: Make sure the implementation of this function matches utils.getPublisherId in
-   * both adapters.
-   * Extract the publisher ID from the given object.
-   * @param {*} prebidBidRequestOrOrtbBidRequest
-   * @returns string
-   * @throws {Error} If the publisher ID is not found in the given object.
-   */
-  getPublisherId: function (prebidBidRequestOrOrtbBidRequest) {
-    // Fields that would be automatically set if the publisher set it
-    // via pbjs.setBidderConfig.
-    const ortbPath = 'site.publisher.id';
-    const prebidPath = `ortb2.${ortbPath}`;
-
-    // Fields that would be set by the publisher in the bid
-    // configuration object in ad unit.
-    const paramPath = 'params.publisherId';
-    const bidRequestFirstBidParam = `bids.0.${paramPath}`;
-
-    const publisherId =
-      deepAccess(prebidBidRequestOrOrtbBidRequest, paramPath) ||
-      deepAccess(prebidBidRequestOrOrtbBidRequest, bidRequestFirstBidParam) ||
-      deepAccess(prebidBidRequestOrOrtbBidRequest, prebidPath) ||
-      deepAccess(prebidBidRequestOrOrtbBidRequest, ortbPath);
-
-    if (!publisherId) {
-      throw new Error(
-        'Failed to obtain publisher ID from the given object. ' +
-        `Please set it via the "${prebidPath}" field with pbjs.setBidderConfig.\n` +
-        'Given object:\n' +
-        JSON.stringify({functionParam: prebidBidRequestOrOrtbBidRequest}, null, 3)
-      );
-    }
-
-    return publisherId;
-  },
-
   /**
    * !IMPORTANT: Make sure the implementation of this function matches utils.getOrtbId in
    * mobkoiAnalyticsAdapter.js.
@@ -254,29 +195,4 @@ export const utils = {
     prebidBidResponse.ortbBidResponse = ortbBidResponse;
     prebidBidResponse.ortbId = ortbBidResponse.id;
   },
-
-  replaceAllMacrosInPlace(ortbBidResponse, context) {
-    const macros = {
-      // ORTB macros
-      AUCTION_PRICE: ortbBidResponse.price,
-      AUCTION_IMP_ID: ortbBidResponse.impid,
-      AUCTION_CURRENCY: ortbBidResponse.cur,
-      AUCTION_BID_ID: context.bidderRequest.auctionId,
-
-      // Custom macros
-      BIDDING_API_BASE_URL: utils.getAdServerEndpointBaseUrl(context.bidderRequest),
-      CREATIVE_ID: ortbBidResponse.crid,
-      CAMPAIGN_ID: ortbBidResponse.cid,
-      ORTB_ID: ortbBidResponse.id,
-      PUBLISHER_ID: utils.getPublisherId(context.bidderRequest),
-    };
-
-    _each(ORTB_RESPONSE_FIELDS_SUPPORT_MACROS, ortbField => {
-      deepSetValue(
-        ortbBidResponse,
-        ortbField,
-        replaceMacros(deepAccess(ortbBidResponse, ortbField), macros)
-      );
-    });
-  },
 }
diff --git a/test/spec/modules/mobkoiBidAdapter_spec.js b/test/spec/modules/mobkoiBidAdapter_spec.js
index 31ce715992a..6d040e97bd9 100644
--- a/test/spec/modules/mobkoiBidAdapter_spec.js
+++ b/test/spec/modules/mobkoiBidAdapter_spec.js
@@ -7,7 +7,6 @@ import {
 describe('Mobkoi bidding Adapter', function () {
   const testAdServerBaseUrl = 'http://test.adServerBaseUrl.com';
   const testRequestId = 'test-request-id';
-  const testPublisherId = 'mobkoiPublisherId';
   const testPlacementId = 'mobkoiPlacementId';
   const testBidId = 'test-bid-id';
   const bidderCode = 'mobkoi';
@@ -18,7 +17,6 @@ describe('Mobkoi bidding Adapter', function () {
   const getOrtb2 = () => ({
     site: {
       publisher: {
-        id: testPublisherId,
         ext: { adServerBaseUrl: testAdServerBaseUrl }
       }
     }
@@ -34,7 +32,6 @@ describe('Mobkoi bidding Adapter', function () {
     auctionId: testAuctionId,
     ortb2: getOrtb2(),
     params: {
-      publisherId: testPublisherId,
       adServerBaseUrl: testAdServerBaseUrl,
       placementId: testPlacementId
     }
@@ -102,36 +99,14 @@ describe('Mobkoi bidding Adapter', function () {
       bid = getBidderRequest().bids[0];
     });
 
-    it('should return true when publisher id only exists in ortb2', function () {
-      delete bid.params.publisherId;
-      expect(spec.isBidRequestValid(bid)).to.equal(true);
-    });
-
     it('should return true when placement id exist in ad unit params', function () {
       expect(spec.isBidRequestValid(bid)).to.equal(true);
     });
 
-    it('should return true when publisher ID only exists in ad unit params', function () {
-      delete bid.ortb2.site.publisher.id;
-      expect(spec.isBidRequestValid(bid)).to.equal(true);
-    });
-
-    it('should return false when publisher id is missing both in ad unit params and ortb2', function () {
-      delete bid.ortb2.site.publisher.id;
-      delete bid.params.publisherId;
-      expect(spec.isBidRequestValid(bid)).to.equal(false);
-    });
-
     it('should return false when placement id is missing in ad unit params', function () {
       delete bid.params.placementId;
       expect(spec.isBidRequestValid(bid)).to.equal(false);
     });
-
-    it('should return false when publisher id is empty in ad unit params and ortb2', function () {
-      bid.ortb2.site.publisher.id = '';
-      bid.params.publisherId = '';
-      expect(spec.isBidRequestValid(bid)).to.equal(false);
-    });
   });
 
   describe('buildRequests', function () {
@@ -147,18 +122,9 @@ describe('Mobkoi bidding Adapter', function () {
       const ortbData = request.data;
 
       expect(ortbData.id).to.equal(bidderRequest.bidderRequestId);
-      expect(ortbData.site.publisher.id).to.equal(bidderRequest.ortb2.site.publisher.id);
     });
 
-    it('should obtain publisher ID from ad unit params if the value does not exist in ortb2.', function () {
-      delete bidderRequest.ortb2.site.publisher.id;
-      const request = spec.buildRequests(bidderRequest.bids, bidderRequest);
-      const ortbData = request.data;
-
-      expect(ortbData.site.publisher.id).to.equal(bidderRequest.bids[0].params.publisherId);
-    });
-
-    it('should obtain adServerBaseUrl from ad unit params if the value does not exist in ortb2.', function () {
+    it('should obtain adServerBaseUrl from ad unit params if the value does not exist in ortb2', function () {
       delete bidderRequest.ortb2.site.publisher.ext.adServerBaseUrl;
       const request = spec.buildRequests(bidderRequest.bids, bidderRequest);
       const ortbData = request.data;
@@ -226,20 +192,6 @@ describe('Mobkoi bidding Adapter', function () {
       });
     })
 
-    describe('getPublisherId', function () {
-      it('should return the publisherId from the given object', function () {
-        expect(utils.getPublisherId(bidderRequest)).to.equal(bidderRequest.ortb2.site.publisher.id);
-      });
-
-      it('should throw error when publisherId is missing', function () {
-        delete bidderRequest.ortb2.site.publisher.id;
-        delete bidderRequest.bids[0].params.publisherId;
-        expect(() => {
-          utils.getPublisherId(bidderRequest);
-        }).to.throw();
-      });
-    })
-
     describe('getOrtbId', function () {
       it('should return the ortbId from the prebid request object (i.e bidderRequestId)', function () {
         expect(utils.getOrtbId(bidderRequest)).to.equal(bidderRequest.bidderRequestId);
@@ -270,46 +222,5 @@ describe('Mobkoi bidding Adapter', function () {
         }).to.throw();
       });
     })
-
-    describe('replaceAllMacrosInPlace', function () {
-      let bidderResponse, bidRequest, bidderRequest;
-
-      beforeEach(function () {
-        bidderRequest = getBidderRequest();
-        bidRequest = spec.buildRequests(bidderRequest.bids, bidderRequest);
-        bidderResponse = getBidderResponse();
-      });
-
-      it('should replace all macros in adm, nurl, and lurl fields', function () {
-        const bid = bidderResponse.body.seatbid[0].bid[0];
-        bid.nurl = '${BIDDING_API_BASE_URL}/win?price=${AUCTION_PRICE}&impressionId=${AUCTION_IMP_ID}&currency=${AUCTION_CURRENCY}&campaignId=${CAMPAIGN_ID}&creativeId=${CREATIVE_ID}&publisherId=${PUBLISHER_ID}&ortbId=${ORTB_ID}';
-        bid.lurl = '${BIDDING_API_BASE_URL}/loss?price=${AUCTION_PRICE}&impressionId=${AUCTION_IMP_ID}&currency=${AUCTION_CURRENCY}&campaignId=${CAMPAIGN_ID}&creativeId=${CREATIVE_ID}&publisherId=${PUBLISHER_ID}&ortbId=${ORTB_ID}';
-        bid.adm = '<div>${AUCTION_PRICE}${AUCTION_CURRENCY}${AUCTION_IMP_ID}${AUCTION_BID_ID}${CAMPAIGN_ID}${CREATIVE_ID}${PUBLISHER_ID}${ORTB_ID}${BIDDING_API_BASE_URL}</div>';
-
-        const BIDDING_API_BASE_URL = testAdServerBaseUrl;
-        const AUCTION_CURRENCY = bidderResponse.body.cur;
-        const AUCTION_BID_ID = bidderRequest.auctionId;
-        const AUCTION_PRICE = bid.price;
-        const AUCTION_IMP_ID = bid.impid;
-        const CREATIVE_ID = bid.crid;
-        const CAMPAIGN_ID = bid.cid;
-        const PUBLISHER_ID = bidderRequest.ortb2.site.publisher.id;
-        const ORTB_ID = bidderResponse.body.id;
-
-        const context = {
-          bidRequest,
-          bidderRequest
-        }
-        utils.replaceAllMacrosInPlace(bid, context);
-
-        expect(bid.adm).to.equal(`<div>${AUCTION_PRICE}${AUCTION_CURRENCY}${AUCTION_IMP_ID}${AUCTION_BID_ID}${CAMPAIGN_ID}${CREATIVE_ID}${PUBLISHER_ID}${ORTB_ID}${BIDDING_API_BASE_URL}</div>`);
-        expect(bid.lurl).to.equal(
-          `${BIDDING_API_BASE_URL}/loss?price=${AUCTION_PRICE}&impressionId=${AUCTION_IMP_ID}&currency=${AUCTION_CURRENCY}&campaignId=${CAMPAIGN_ID}&creativeId=${CREATIVE_ID}&publisherId=${PUBLISHER_ID}&ortbId=${ORTB_ID}`
-        );
-        expect(bid.nurl).to.equal(
-          `${BIDDING_API_BASE_URL}/win?price=${AUCTION_PRICE}&impressionId=${AUCTION_IMP_ID}&currency=${AUCTION_CURRENCY}&campaignId=${CAMPAIGN_ID}&creativeId=${CREATIVE_ID}&publisherId=${PUBLISHER_ID}&ortbId=${ORTB_ID}`
-        );
-      });
-    })
   })
-})
+})
\ No newline at end of file