diff --git a/src/app/api-connector/applications.service.ts b/src/app/api-connector/applications.service.ts
index 7290bcb7aa..bd283a951f 100644
--- a/src/app/api-connector/applications.service.ts
+++ b/src/app/api-connector/applications.service.ts
@@ -239,6 +239,26 @@ export class ApplicationsService {
 		);
 	}
 
+	withdrawExtensionRequest(request_id: number | string): Observable<any> {
+		return this.http.post(
+			`${ApiSettings.getApiBaseURL()}project_applications/lifetime/extensions/${request_id}/withdraw/`,
+			null,
+			{
+				withCredentials: true,
+			},
+		);
+	}
+
+	withdrawModificationRequest(request_id: number | string): Observable<any> {
+		return this.http.post(
+			`${ApiSettings.getApiBaseURL()}project_applications/modifications/${request_id}/withdraw/`,
+			null,
+			{
+				withCredentials: true,
+			},
+		);
+	}
+
 	declineAdditionalLifetime(request_id: number | string): Observable<any> {
 		return this.http.post(
 			`${ApiSettings.getApiBaseURL()}project_applications/lifetime/extensions/${request_id}/decline/`,
diff --git a/src/app/applications/application.model/application.model.ts b/src/app/applications/application.model/application.model.ts
index 85e373535e..c07ce90a99 100644
--- a/src/app/applications/application.model/application.model.ts
+++ b/src/app/applications/application.model/application.model.ts
@@ -37,6 +37,8 @@ export class Application {
 	project_application_compute_center: ComputecenterComponent;
 	project_application_openstack_project: boolean;
 	project_application_total_gpu: number = 0;
+	lifetime_extension_request_id: number | string;
+	modification_extension_request_id: number | string;
 
 	pi_approval_notification_send: boolean;
 	pi_approval_notification_expired: boolean;
diff --git a/src/app/projectmanagement/modals/withdraw/withdraw-modal.component.html b/src/app/projectmanagement/modals/withdraw/withdraw-modal.component.html
new file mode 100644
index 0000000000..591662de93
--- /dev/null
+++ b/src/app/projectmanagement/modals/withdraw/withdraw-modal.component.html
@@ -0,0 +1,64 @@
+<div>
+	<div class="modal-header">
+		<h4 class="modal-title">
+			Withdraw
+			@if (type === WITHDRAWAL_TYPES.MODIFICATION) {
+				Modification
+			} @else if (type === WITHDRAWAL_TYPES.EXTENSION) {
+				Extension
+			}
+			Request
+		</h4>
+		<button
+			type="button"
+			class="btn-close"
+			style="cursor: pointer"
+			(click)="bsModalRef.hide()"
+			data-dismiss="modal"
+			aria-label="Close"
+		></button>
+	</div>
+	<div class="modal-body">
+		<div class="col-md-auto mx-auto">
+			<div class="alert alert-warning" role="alert">
+				<p>
+					Are you sure you want to withdraw this
+					@if (type === WITHDRAWAL_TYPES.MODIFICATION) {
+						Modification
+					} @else if (type === WITHDRAWAL_TYPES.EXTENSION) {
+						Extension
+					}
+					Request?
+				</p>
+				<p>You can always create a new request if needed.</p>
+			</div>
+		</div>
+	</div>
+	<div class="modal-footer">
+		<div class="row" style="margin: auto">
+			<div class="col-md-auto mx-auto">
+				<button
+					id="withdraw_btn"
+					class="btn btn-danger"
+					type="reset"
+					data-test-id="withdraw_btn"
+					(click)="withdrawTarget()"
+				>
+					Withdraw
+				</button>
+			</div>
+			<div class="col-md-auto mx-auto">
+				<button
+					id="close_withdrawal_button"
+					class="btn btn-primary"
+					type="reset"
+					data-test-id="close_withdrawal_button"
+					(click)="bsModalRef.hide()"
+				>
+					Cancel
+				</button>
+			</div>
+		</div>
+	</div>
+	<!-- /.modal-content -->
+</div>
diff --git a/src/app/projectmanagement/modals/withdraw/withdraw-modal.component.ts b/src/app/projectmanagement/modals/withdraw/withdraw-modal.component.ts
new file mode 100644
index 0000000000..ff6ca1edcf
--- /dev/null
+++ b/src/app/projectmanagement/modals/withdraw/withdraw-modal.component.ts
@@ -0,0 +1,46 @@
+import { Component, EventEmitter } from '@angular/core';
+import { BsModalRef } from 'ngx-bootstrap/modal';
+
+import { ApplicationsService } from '../../../api-connector/applications.service';
+
+export enum WITHDRAWAL_TYPES {
+	MODIFICATION,
+	EXTENSION,
+}
+
+@Component({
+	selector: 'app-withdrawl-modal',
+	templateUrl: './withdraw-modal.component.html',
+	providers: [ApplicationsService],
+})
+export class WithdrawModalComponent {
+	target_id: string | number;
+	type: WITHDRAWAL_TYPES;
+	event: EventEmitter<boolean> = new EventEmitter();
+
+	constructor(
+		public bsModalRef: BsModalRef,
+		private projectService: ApplicationsService,
+	) {
+		// eslint-disable-next-line no-empty-function
+	}
+
+	withdrawTarget() {
+		switch (this.type) {
+			case WITHDRAWAL_TYPES.EXTENSION:
+				this.projectService.withdrawExtensionRequest(this.target_id).subscribe(() => {
+					this.bsModalRef.hide();
+					this.event.emit(true);
+				});
+				break;
+			case WITHDRAWAL_TYPES.MODIFICATION:
+				this.projectService.withdrawModificationRequest(this.target_id).subscribe(() => {
+					this.bsModalRef.hide();
+					this.event.emit(true);
+				});
+				break;
+		}
+	}
+
+	protected readonly WITHDRAWAL_TYPES = WITHDRAWAL_TYPES;
+}
diff --git a/src/app/projectmanagement/overview.component.html b/src/app/projectmanagement/overview.component.html
index d9a79dd45c..65b4fe595d 100644
--- a/src/app/projectmanagement/overview.component.html
+++ b/src/app/projectmanagement/overview.component.html
@@ -308,6 +308,18 @@ <h3>
 										<button class="btn btn-outline-primary" disabled>Request extension</button>
 									</span>
 								</ng-container>
+								<button
+									(click)="showWithDrawExtensionModal()"
+									*ngIf="
+										project_application.user_is_admin &&
+										(project_application | hasstatusinlist: Application_States.LIFETIME_EXTENSION_REQUESTED)
+									"
+									class="btn btn-outline-warning"
+									data-test-id="open_modification_request_button"
+									id="show_lifetime_extension_withdraw_button"
+								>
+									Withdraw extension request
+								</button>
 								<button
 									(click)="showExtensionInformationModal()"
 									*ngIf="
@@ -403,7 +415,7 @@ <h3>
 					<div class="row">
 						<div class="col-6">
 							<div
-								*ngIf="this.resourceDataLoaded"
+								*ngIf="resourceDataLoaded"
 								class="callout"
 								[ngClass]="(project_application | isMigratedProject) ? 'callout-warning' : 'callout-info'"
 								style="border-top-width: 0; border-bottom-width: 0; border-right-width: 0"
@@ -511,6 +523,18 @@ <h3>
 								>
 									Request resource modification
 								</button>
+								<button
+									(click)="showWithDrawModificationModal()"
+									*ngIf="
+										project_application.user_is_admin &&
+										(project_application | hasstatusinlist: Application_States.MODIFICATION_REQUESTED)
+									"
+									class="btn btn-outline-warning"
+									data-test-id="open_modification_request_button"
+									id="show_modification_extension_withdraw_button"
+								>
+									Withdraw resource modification
+								</button>
 								<button
 									*ngIf="
 										(project_application | hasstatusinlist: Application_States.MODIFICATION_REQUESTED) ||
@@ -1202,8 +1226,8 @@ <h5 class="card-title">
 					<div class="alert alert-info">
 						<p>
 							If you are unsure whether a DOI has already been entered (for example, in a previous or expired project):
-							<strong>Duplicate entries are recognized by our system and do not pose a problem.</strong> In addition to
-							the public page, a
+							<strong>Duplicate entries are recognized by our system and do not pose a problem.</strong>
+							In addition to the public page, a
 							<a href="{{ PUBLIC_DOI_ENDPOINT }}" rel="noopener noreferrer" class="alert-link" target="_blank"
 								>public endpoint</a
 							>
@@ -1211,7 +1235,8 @@ <h5 class="card-title">
 						</p>
 						<hr />
 						<p>
-							Please note that <strong>the publications entered on this page are listed publicly</strong> on
+							Please note that <strong>the publications entered on this page are listed publicly</strong>
+							on
 							<a href="{{ PUBLICATIONS_LINK }}" rel="noopener noreferrer" class="alert-link" target="_blank"
 								>this page on our website</a
 							>. We kindly ask you to list your publications which have been created during your work in the de.NBI
diff --git a/src/app/projectmanagement/overview.component.ts b/src/app/projectmanagement/overview.component.ts
index 4c1dcbc466..7c4ee995ec 100644
--- a/src/app/projectmanagement/overview.component.ts
+++ b/src/app/projectmanagement/overview.component.ts
@@ -34,12 +34,12 @@ import {
 	CREDITS_WIKI,
 	NEW_SVM_PORTAL_LINK,
 	OPENSTACK_LINK,
+	PUBLIC_DOI_ENDPOINT,
 	PUBLICATIONS_LINK,
 	SIMPLE_VM_LINK,
 	STATUS_LINK,
 	WIKI_MEMBER_MANAGEMENT,
 	WIKI_PUBLICATIONS,
-	PUBLIC_DOI_ENDPOINT,
 } from '../../links/links';
 import { Doi } from '../applications/doi/doi';
 import { ApiSettings } from '../api-connector/api-settings.service';
@@ -49,6 +49,7 @@ import { ModificationRequestComponent } from './modals/modification-request/modi
 import { LifetimeRequestComponent } from './modals/lifetime-request/lifetime-request.component';
 import { CreditsRequestComponent } from './modals/credits-request/credits-request.component';
 import { ExtensionEntryComponent } from './modals/testimonial/extension-entry.component';
+import { WITHDRAWAL_TYPES, WithdrawModalComponent } from './modals/withdraw/withdraw-modal.component';
 
 /**
  * Projectoverview component.
@@ -229,6 +230,8 @@ export class OverviewComponent extends ApplicationBaseClassComponent implements
 
 						return;
 					}
+					this.modificationRequestDisabled = false;
+					this.lifetimeExtensionDisabled = false;
 
 					this.project_application = aj;
 
@@ -333,6 +336,29 @@ export class OverviewComponent extends ApplicationBaseClassComponent implements
 		this.subscribeForExtensionResult(this.ExtensionRequestType.MODIFICATION);
 	}
 
+	showWithDrawExtensionModal(): void {
+		this.showWithdrawModal(this.project_application.lifetime_extension_request_id, WITHDRAWAL_TYPES.EXTENSION);
+	}
+
+	showWithDrawModificationModal(): void {
+		this.showWithdrawModal(this.project_application.modification_extension_request_id, WITHDRAWAL_TYPES.MODIFICATION);
+	}
+
+	showWithdrawModal(target_id: string | number, type: WITHDRAWAL_TYPES): void {
+		const initialState = {
+			target_id,
+			type,
+		};
+		this.bsModalRef = this.modalService.show(WithdrawModalComponent, { initialState, class: 'modal-lg' });
+		this.subscription.add(
+			this.bsModalRef.content.event.subscribe((event: boolean): void => {
+				if (event) {
+					this.getApplication();
+				}
+			}),
+		);
+	}
+
 	showExtensionInformationModal(): void {
 		const initialState = {
 			dois: this.dois,