diff --git a/src/web/app/components/account-requests-table/admin-reject-with-reason-modal/__snapshots__/admin-reject-with-reason-modal.component.spec.ts.snap b/src/web/app/components/account-requests-table/admin-reject-with-reason-modal/__snapshots__/admin-reject-with-reason-modal.component.spec.ts.snap
index 6d39aa0d076..f657de589c6 100644
--- a/src/web/app/components/account-requests-table/admin-reject-with-reason-modal/__snapshots__/admin-reject-with-reason-modal.component.spec.ts.snap
+++ b/src/web/app/components/account-requests-table/admin-reject-with-reason-modal/__snapshots__/admin-reject-with-reason-modal.component.spec.ts.snap
@@ -5,8 +5,10 @@ exports[`RejectWithReasonModal should show empty title and body 1`] = `
   accountRequestEmail=""
   accountRequestName=""
   activeModal={[Function NgbActiveModal]}
+  existingAccount={[Function Object]}
   rejectionReasonBody={[Function String]}
   rejectionReasonTitle={[Function String]}
+  searchService={[Function SearchService]}
   statusMessageService={[Function StatusMessageService]}
 >
   <div
diff --git a/src/web/app/components/account-requests-table/admin-reject-with-reason-modal/admin-reject-with-reason-modal.component.spec.ts b/src/web/app/components/account-requests-table/admin-reject-with-reason-modal/admin-reject-with-reason-modal.component.spec.ts
index 66c831077b0..e59fb7814cf 100644
--- a/src/web/app/components/account-requests-table/admin-reject-with-reason-modal/admin-reject-with-reason-modal.component.spec.ts
+++ b/src/web/app/components/account-requests-table/admin-reject-with-reason-modal/admin-reject-with-reason-modal.component.spec.ts
@@ -1,11 +1,45 @@
 import { HttpClientTestingModule } from '@angular/common/http/testing';
 import { ComponentFixture, TestBed, waitForAsync } from '@angular/core/testing';
 import { By } from '@angular/platform-browser';
+import { RouterTestingModule } from '@angular/router/testing';
 import { NgbActiveModal } from '@ng-bootstrap/ng-bootstrap';
+import { of } from 'rxjs';
 import { RejectWithReasonModalComponent } from './admin-reject-with-reason-modal.component';
+import {
+  FeedbackSessionsGroup, InstructorAccountSearchResult,
+  SearchService,
+} from '../../../../services/search.service';
 import { StatusMessageService } from '../../../../services/status-message.service';
+import { createBuilder } from '../../../../test-helpers/generic-builder';
+
+const DEFAULT_FEEDBACK_SESSION_GROUP: FeedbackSessionsGroup = {
+  sessionName: {
+    feedbackSessionUrl: 'sessionUrl',
+    startTime: 'startTime',
+    endTime: 'endTime',
+  },
+};
+
+const instructorAccountSearchResultBuilder = createBuilder<InstructorAccountSearchResult>({
+  name: 'name',
+  email: 'email',
+  googleId: 'googleId',
+  courseId: 'courseId',
+  courseName: 'courseName',
+  isCourseDeleted: false,
+  institute: 'institute',
+  courseJoinLink: 'courseJoinLink',
+  homePageLink: 'homePageLink',
+  manageAccountLink: 'manageAccountLink',
+  showLinks: false,
+  awaitingSessions: DEFAULT_FEEDBACK_SESSION_GROUP,
+  openSessions: DEFAULT_FEEDBACK_SESSION_GROUP,
+  notOpenSessions: DEFAULT_FEEDBACK_SESSION_GROUP,
+  publishedSessions: DEFAULT_FEEDBACK_SESSION_GROUP,
+});
 
 describe('RejectWithReasonModal', () => {
+  let searchService: SearchService;
   let statusMessageService: StatusMessageService;
   let fixture: ComponentFixture<RejectWithReasonModalComponent>;
   let component: RejectWithReasonModalComponent;
@@ -15,14 +49,16 @@ describe('RejectWithReasonModal', () => {
       declarations: [],
       imports: [
         HttpClientTestingModule,
+        RouterTestingModule,
       ],
-      providers: [NgbActiveModal, StatusMessageService],
+      providers: [NgbActiveModal, SearchService, StatusMessageService],
     })
     .compileComponents();
   }));
 
   beforeEach(() => {
     fixture = TestBed.createComponent(RejectWithReasonModalComponent);
+    searchService = TestBed.inject(SearchService);
     statusMessageService = TestBed.inject(StatusMessageService);
     fixture.detectChanges();
     component = fixture.componentInstance;
@@ -36,7 +72,34 @@ describe('RejectWithReasonModal', () => {
     expect(fixture).toMatchSnapshot();
   });
 
-  it('should show error message when title is empty upon submitting', () => {
+  it('replaceGoogleId: should set the googleId to an empty string if no instructor accounts are found', () => {
+    jest.spyOn(searchService, 'searchAdmin').mockReturnValue(of({
+      students: [],
+      instructors: [],
+      accountRequests: [],
+    }));
+
+    component.replaceGoogleId();
+
+    expect(component.existingAccount.googleId).toEqual('');
+  });
+
+  it('replaceGoogleId: should set the googleId to the instructor accounts googleId '
+  + 'if an instructor account is found', () => {
+    const testInstructor = instructorAccountSearchResultBuilder.googleId('instructorGoogleId').build();
+
+    jest.spyOn(searchService, 'searchAdmin').mockReturnValue(of({
+      students: [],
+      instructors: [testInstructor],
+      accountRequests: [],
+    }));
+
+    component.replaceGoogleId();
+
+    expect(component.existingAccount.googleId).toEqual('instructorGoogleId');
+  });
+
+  it('reject: should show error message when title is empty upon submitting', () => {
     component.rejectionReasonTitle = '';
     fixture.detectChanges();
 
@@ -51,7 +114,7 @@ describe('RejectWithReasonModal', () => {
     expect(spyStatusMessageService).toHaveBeenCalled();
   });
 
-  it('should show error message when body is empty upon submitting', () => {
+  it('reject: should show error message when body is empty upon submitting', () => {
     component.rejectionReasonBody = '';
     fixture.detectChanges();
 
@@ -65,7 +128,7 @@ describe('RejectWithReasonModal', () => {
     expect(spyStatusMessageService).toHaveBeenCalled();
   });
 
-  it('should close modal with data', () => {
+  it('reject: should close modal with data', () => {
     const spyActiveModal = jest.spyOn(component.activeModal, 'close');
     component.rejectionReasonTitle = 'Rejection Title';
     component.rejectionReasonBody = 'Rejection Body';
diff --git a/src/web/app/components/account-requests-table/admin-reject-with-reason-modal/admin-reject-with-reason-modal.component.ts b/src/web/app/components/account-requests-table/admin-reject-with-reason-modal/admin-reject-with-reason-modal.component.ts
index 051d145d4d6..080b813161d 100644
--- a/src/web/app/components/account-requests-table/admin-reject-with-reason-modal/admin-reject-with-reason-modal.component.ts
+++ b/src/web/app/components/account-requests-table/admin-reject-with-reason-modal/admin-reject-with-reason-modal.component.ts
@@ -2,7 +2,9 @@ import { Component, Input, OnInit } from '@angular/core';
 import { NgbActiveModal } from '@ng-bootstrap/ng-bootstrap';
 import { RejectWithReasonModalComponentResult } from './admin-reject-with-reason-modal-model';
 import { environment } from '../../../../environments/environment';
+import { AdminSearchResult, InstructorAccountSearchResult, SearchService } from '../../../../services/search.service';
 import { StatusMessageService } from '../../../../services/status-message.service';
+import { ErrorMessageOutput } from '../../../error-message-output';
 
 /**
  * Modal to select reject account requests with reason.
@@ -21,6 +23,24 @@ export class RejectWithReasonModalComponent implements OnInit {
   @Input()
   accountRequestEmail: string = '';
 
+  existingAccount: InstructorAccountSearchResult = {
+    name: '',
+    email: '',
+    googleId: '',
+    courseId: '',
+    courseName: '',
+    isCourseDeleted: false,
+    institute: '',
+    courseJoinLink: '',
+    homePageLink: '',
+    manageAccountLink: '',
+    showLinks: false,
+    awaitingSessions: {},
+    openSessions: {},
+    notOpenSessions: {},
+    publishedSessions: {},
+  };
+
   rejectionReasonBody: string = '<p>Hi, {accountRequestName} </p>\n\n'
   + '<p>Thanks for your interest in using TEAMMATES. '
   + 'We are unable to create a TEAMMATES instructor account for you.</p>'
@@ -33,24 +53,62 @@ export class RejectWithReasonModalComponent implements OnInit {
   + '<strong>Remedy:</strong> If you are a student but you still need an instructor account, '
   + 'please send your justification to {supportEmail}</p>\n\n'
   + '<p><strong>Reason:</strong> You already have an account for this email address and this institution.<br />'
-  + '<strong>Remedy:</strong> You can login to TEAMMATES using your Google account {existingEmail} </p>\n\n'
+  + '<strong>Remedy:</strong> You can login to TEAMMATES using your Google account: {googleId} </p>\n\n'
+  + '<p>If you are logged into multiple Google accounts, remember to logout from other Google accounts first, '
+  + 'or use an incognito Browser window. Let us know (with a screenshot) if that doesn\'t work.</p>'
   + '<p>If you need further clarification or would like to appeal this decision, please '
   + 'feel free to contact us at {supportEmail}</p>'
   + '<p>Regards,<br />TEAMMATES Team.</p>';
   rejectionReasonTitle: string = 'We are Unable to Create an Account for you';
 
-  constructor(public activeModal: NgbActiveModal, public statusMessageService: StatusMessageService) {}
+  constructor(
+    public activeModal: NgbActiveModal,
+    public statusMessageService: StatusMessageService,
+
+    private searchService: SearchService,
+  ) {}
 
   ngOnInit(): void {
     this.rejectionReasonBody = this.rejectionReasonBody.replace('{accountRequestName}', this.accountRequestName);
-    this.rejectionReasonBody = this.rejectionReasonBody.replace('{existingEmail}', this.accountRequestEmail);
     this.rejectionReasonBody = this.rejectionReasonBody.replaceAll('{supportEmail}', environment.supportEmail);
+
+    this.replaceGoogleId();
   }
 
   onRejectionReasonBodyChange(updatedText: string): void {
     this.rejectionReasonBody = updatedText;
   }
 
+  replaceGoogleId(): void {
+    this.searchService.searchAdmin(this.accountRequestEmail)
+    .subscribe({
+      next: (resp: AdminSearchResult) => {
+        const hasInstructors: boolean = !!(resp.instructors && resp.instructors.length);
+
+        if (!hasInstructors) {
+          this.rejectionReasonBody = this.rejectionReasonBody.replace('{googleId}', 'NO_GOOGLEID');
+          return;
+        }
+
+        for (const instructor of resp.instructors) {
+          if (instructor.googleId !== '') {
+            this.existingAccount = instructor;
+          }
+        }
+
+        if (this.existingAccount.googleId === '') {
+          // When an instructor account exists, but for some reason does not have a googleId
+          this.rejectionReasonBody = this.rejectionReasonBody.replace('{googleId}', 'NO_GOOGLEID');
+        } else {
+          this.rejectionReasonBody = this.rejectionReasonBody.replace('{googleId}', this.existingAccount.googleId);
+        }
+      },
+      error: (resp: ErrorMessageOutput) => {
+        this.statusMessageService.showErrorToast(resp.error.message);
+      },
+    });
+  }
+
   /**
    * Fires the reject event.
    */