diff --git a/ui/lib/sync/addon/components/secrets/landing-cta.hbs b/ui/lib/sync/addon/components/secrets/landing-cta.hbs
index c7a3096bc1..33acab84c8 100644
--- a/ui/lib/sync/addon/components/secrets/landing-cta.hbs
+++ b/ui/lib/sync/addon/components/secrets/landing-cta.hbs
@@ -3,6 +3,15 @@
   SPDX-License-Identifier: BUSL-1.1
 ~}}
 
+<SyncHeader @title="Secrets Sync">
+  <:actions>
+    {{! Only allow users to create a destination if secrets-sync is activated }}
+    {{#if (and this.version.isEnterprise @isActivated)}}
+      <Hds::Button @text="Create first destination" @route="secrets.destinations.create" data-test-cta-button />
+    {{/if}}
+  </:actions>
+</SyncHeader>
+
 <div class="box is-fullwidth is-sideless is-flex-between is-shadowless" data-test-cta-container>
   {{#if this.version.isEnterprise}}
     <p>
diff --git a/ui/lib/sync/addon/components/secrets/page/overview.hbs b/ui/lib/sync/addon/components/secrets/page/overview.hbs
index 6c5644e21e..aaa8ebca5c 100644
--- a/ui/lib/sync/addon/components/secrets/page/overview.hbs
+++ b/ui/lib/sync/addon/components/secrets/page/overview.hbs
@@ -3,15 +3,27 @@
   SPDX-License-Identifier: BUSL-1.1
 ~}}
 
-<SyncHeader @title="Secrets Sync">
-  <:actions>
-    {{#if (and this.version.isEnterprise (not @destinations))}}
-      <Hds::Button @text="Create first destination" @route="secrets.destinations.create" data-test-cta-button />
-    {{/if}}
-  </:actions>
-</SyncHeader>
+{{#unless this.isActivated}}
+  <Hds::Alert @type="inline" @color="warning" data-test-secrets-sync-opt-in-banner as |A|>
+    <A.Title>Enable secrets sync feature</A.Title>
+    <A.Description>To use this feature, specific activation is required. Please review the feature documentation and enable
+      it. If you're upgrading from beta, your previous data will be accessible after activation.</A.Description>
+    <A.Button
+      @text="Enable"
+      @color="secondary"
+      {{on "click" (fn (mut this.showActivateSecretsSyncModal) true)}}
+      data-test-secrets-sync-opt-in-banner-enable
+    />
+  </Hds::Alert>
+{{/unless}}
+{{! show error if call to activated endpoint fails }}
+{{#if @isAdapterError}}
+  <MessageError @errorMessage={{@activatedFeatures.message}} />
+{{/if}}
 
 {{#if @destinations}}
+  <SyncHeader @title="Secrets Sync" />
+
   <div class="tabs-container box is-bottomless is-marginless is-paddingless">
     <nav class="tabs" aria-label="destination tabs">
       <ul>
@@ -162,5 +174,39 @@
     </OverviewCard>
   </div>
 {{else}}
-  <Secrets::LandingCta />
+  <Secrets::LandingCta @isActivated={{this.isActivated}} />
+{{/if}}
+
+{{#if this.showActivateSecretsSyncModal}}
+  <Hds::Modal @onClose={{fn (mut this.showActivateSecretsSyncModal) false}} data-test-secrets-sync-opt-in-modal as |M|>
+    <M.Header @icon="alert-triangle">
+      Enable secrets sync feature
+    </M.Header>
+    <M.Body>
+      <p class="has-bottom-margin-m">
+        Before using this feature, we want to make sure you’ve carefully read the document around the billing and client
+        count impact.
+        <DocLink @path="/vault/docs/sync">Docs here.</DocLink>
+      </p>
+      <Hds::Form::Checkbox::Field {{on "change" this.onDocsConfirmChange}} data-test-opt-in-check as |F|>
+        <F.Label>I've read the above linked document</F.Label>
+      </Hds::Form::Checkbox::Field>
+    </M.Body>
+    <M.Footer>
+      <Hds::ButtonSet>
+        <Hds::Button
+          data-test-opt-in-confirm
+          @text="Confirm"
+          disabled={{this.confirmDisabled}}
+          {{on "click" (perform this.onFeatureConfirm)}}
+        />
+        <Hds::Button
+          data-test-save-opt-in-cancel
+          @text="Cancel"
+          @color="secondary"
+          {{on "click" (fn (mut this.showActivateSecretsSyncModal) false)}}
+        />
+      </Hds::ButtonSet>
+    </M.Footer>
+  </Hds::Modal>
 {{/if}}
\ No newline at end of file
diff --git a/ui/lib/sync/addon/components/secrets/page/overview.ts b/ui/lib/sync/addon/components/secrets/page/overview.ts
index b0edaff33d..b4a6456bdf 100644
--- a/ui/lib/sync/addon/components/secrets/page/overview.ts
+++ b/ui/lib/sync/addon/components/secrets/page/overview.ts
@@ -7,28 +7,36 @@ import Component from '@glimmer/component';
 import { tracked } from '@glimmer/tracking';
 import { service } from '@ember/service';
 import { task } from 'ember-concurrency';
+import { waitFor } from '@ember/test-waiters';
+import { action } from '@ember/object';
+import errorMessage from 'vault/utils/error-message';
 import Ember from 'ember';
 
 import type FlashMessageService from 'vault/services/flash-messages';
-import type RouterService from '@ember/routing/router-service';
 import type StoreService from 'vault/services/store';
+import type RouterService from '@ember/routing/router-service';
 import type VersionService from 'vault/services/version';
 import type { SyncDestinationAssociationMetrics } from 'vault/vault/adapters/sync/association';
 import type SyncDestinationModel from 'vault/vault/models/sync/destination';
+import type { HTMLElementEvent } from 'vault/forms';
 
 interface Args {
   destinations: Array<SyncDestinationModel>;
-  totalAssociations: number;
+  totalVaultSecrets: number;
+  activatedFeatures: Array<string>;
+  isAdapterError: boolean;
 }
 
 export default class SyncSecretsDestinationsPageComponent extends Component<Args> {
   @service declare readonly flashMessages: FlashMessageService;
-  @service declare readonly router: RouterService;
   @service declare readonly store: StoreService;
+  @service declare readonly router: RouterService;
   @service declare readonly version: VersionService;
 
   @tracked destinationMetrics: SyncDestinationAssociationMetrics[] = [];
   @tracked page = 1;
+  @tracked showActivateSecretsSyncModal = false;
+  @tracked confirmDisabled = true;
 
   pageSize = Ember.testing ? 3 : 5; // lower in tests to test pagination without seeding more data
 
@@ -39,6 +47,13 @@ export default class SyncSecretsDestinationsPageComponent extends Component<Args
     }
   }
 
+  get isActivated() {
+    if (this.args.isAdapterError) {
+      return false;
+    }
+    return this.args.activatedFeatures.includes('secrets-sync');
+  }
+
   fetchAssociationsForDestinations = task(this, {}, async (page = 1) => {
     try {
       const total = page * this.pageSize;
@@ -51,4 +66,23 @@ export default class SyncSecretsDestinationsPageComponent extends Component<Args
       this.destinationMetrics = [];
     }
   });
+
+  @action
+  onDocsConfirmChange(event: HTMLElementEvent<HTMLInputElement>) {
+    this.confirmDisabled = !event.target.checked;
+  }
+
+  @task
+  @waitFor
+  *onFeatureConfirm() {
+    try {
+      yield this.store
+        .adapterFor('application')
+        .ajax('/v1/sys/activation-flags/secrets-sync/activate', 'POST');
+      this.showActivateSecretsSyncModal = false;
+      this.router.transitionTo('vault.cluster.sync.secrets.overview');
+    } catch (error) {
+      this.flashMessages.danger(`Error enabling feature \n ${errorMessage(error)}`);
+    }
+  }
 }
diff --git a/ui/lib/sync/addon/routes/secrets.ts b/ui/lib/sync/addon/routes/secrets.ts
new file mode 100644
index 0000000000..52a6dc97dd
--- /dev/null
+++ b/ui/lib/sync/addon/routes/secrets.ts
@@ -0,0 +1,45 @@
+/**
+ * Copyright (c) HashiCorp, Inc.
+ * SPDX-License-Identifier: BUSL-1.1
+ */
+
+import Route from '@ember/routing/route';
+import { service } from '@ember/service';
+import { hash } from 'rsvp';
+
+import type RouterService from '@ember/routing/router-service';
+import type StoreService from 'vault/services/store';
+import type AdapterError from '@ember-data/adapter';
+
+interface ActivationFlagsResponse {
+  data: {
+    activated: Array<string>;
+    unactivated: Array<string>;
+  };
+}
+
+export default class SyncSecretsRoute extends Route {
+  @service declare readonly router: RouterService;
+  @service declare readonly store: StoreService;
+
+  model() {
+    return hash({
+      activatedFeatures: this.store
+        .adapterFor('application')
+        .ajax('/v1/sys/activation-flags', 'GET')
+        .then((resp: ActivationFlagsResponse) => {
+          return resp.data.activated;
+        })
+        .catch((error: AdapterError) => {
+          // we break out this error while passing args to the component and handle the error in the overview template
+          return error;
+        }),
+    });
+  }
+
+  afterModel(model: { activatedFeatures: Array<string> | AdapterError }) {
+    if (!model.activatedFeatures) {
+      this.router.transitionTo('vault.cluster.sync.secrets.overview');
+    }
+  }
+}
diff --git a/ui/lib/sync/addon/routes/secrets/overview.ts b/ui/lib/sync/addon/routes/secrets/overview.ts
index 07142cca65..4c088a7b53 100644
--- a/ui/lib/sync/addon/routes/secrets/overview.ts
+++ b/ui/lib/sync/addon/routes/secrets/overview.ts
@@ -8,17 +8,22 @@ import { service } from '@ember/service';
 import { hash } from 'rsvp';
 
 import type StoreService from 'vault/services/store';
+import type AdapterError from '@ember-data/adapter';
 
 export default class SyncSecretsOverviewRoute extends Route {
   @service declare readonly store: StoreService;
 
   async model() {
+    const { activatedFeatures } = this.modelFor('secrets') as {
+      activatedFeatures: Array<string> | AdapterError;
+    };
     return hash({
       destinations: this.store.query('sync/destination', {}).catch(() => []),
       associations: this.store
         .adapterFor('sync/association')
         .queryAll()
         .catch(() => []),
+      activatedFeatures,
     });
   }
 }
diff --git a/ui/lib/sync/addon/templates/secrets/overview.hbs b/ui/lib/sync/addon/templates/secrets/overview.hbs
index 72f31cc6e4..21e8ea4e81 100644
--- a/ui/lib/sync/addon/templates/secrets/overview.hbs
+++ b/ui/lib/sync/addon/templates/secrets/overview.hbs
@@ -6,4 +6,6 @@
 <Secrets::Page::Overview
   @destinations={{this.model.destinations}}
   @totalVaultSecrets={{this.model.associations.total_secrets}}
+  @activatedFeatures={{this.model.activatedFeatures}}
+  @isAdapterError={{this.model.activatedFeatures.isAdapterError}}
 />
\ No newline at end of file
diff --git a/ui/mirage/handlers/sync.js b/ui/mirage/handlers/sync.js
index 2804243b9a..cf1eec2639 100644
--- a/ui/mirage/handlers/sync.js
+++ b/ui/mirage/handlers/sync.js
@@ -116,6 +116,16 @@ const createOrUpdateDestination = (schema, req) => {
 };
 
 export default function (server) {
+  // default to activated
+  server.get('/sys/activation-flags', () => {
+    return {
+      data: {
+        activated: ['secrets-sync'],
+        unactivated: [''],
+      },
+    };
+  });
+
   const base = '/sys/sync/destinations';
   const uri = `${base}/:type/:name`;
 
diff --git a/ui/tests/acceptance/sync/secrets/destinations-test.js b/ui/tests/acceptance/sync/secrets/destinations-test.js
index 6885acd5fe..064008d3d4 100644
--- a/ui/tests/acceptance/sync/secrets/destinations-test.js
+++ b/ui/tests/acceptance/sync/secrets/destinations-test.js
@@ -26,6 +26,27 @@ module('Acceptance | sync | destinations', function (hooks) {
     return authPage.login();
   });
 
+  test('it should show opt-in banner and modal if secrets-sync is not activated', async function (assert) {
+    assert.expect(3);
+    server.get('/sys/activation-flags', () => {
+      return {
+        data: {
+          activated: [''],
+          unactivated: ['secrets-sync'],
+        },
+      };
+    });
+
+    await visit('vault/sync/secrets/overview');
+    assert.dom(ts.overview.optInBanner).exists('Opt-in banner is shown');
+    await click(ts.overview.optInBannerEnable);
+    assert.dom(ts.overview.optInModal).exists('Opt-in modal is shown');
+    assert.dom(ts.overview.optInConfirm).isDisabled('Confirm button is disabled when checkbox is unchecked');
+    await click(ts.overview.optInCheck);
+    await click(ts.overview.optInConfirm);
+    // ARG TODO improve test coverage and try and use API to check if the opt-in was successful
+  });
+
   test('it should create new destination', async function (assert) {
     // remove destinations from mirage so cta shows when 404 is returned
     this.server.db.syncDestinations.remove();
diff --git a/ui/tests/helpers/sync/sync-selectors.js b/ui/tests/helpers/sync/sync-selectors.js
index 7c3afb3b72..ac8428cd71 100644
--- a/ui/tests/helpers/sync/sync-selectors.js
+++ b/ui/tests/helpers/sync/sync-selectors.js
@@ -51,6 +51,11 @@ export const PAGE = {
     },
   },
   overview: {
+    optInBanner: '[data-test-secrets-sync-opt-in-banner]',
+    optInBannerEnable: '[data-test-secrets-sync-opt-in-banner-enable]',
+    optInModal: '[data-test-secrets-sync-opt-in-modal]',
+    optInCheck: '[data-test-opt-in-check]',
+    optInConfirm: '[data-test-opt-in-confirm]',
     createDestination: '[data-test-create-destination]',
     table: {
       row: '[data-test-overview-table-row]',
diff --git a/ui/tests/integration/components/sync/secrets/landing-cta-test.js b/ui/tests/integration/components/sync/secrets/landing-cta-test.js
index 68a0859f3f..c40bb95711 100644
--- a/ui/tests/integration/components/sync/secrets/landing-cta-test.js
+++ b/ui/tests/integration/components/sync/secrets/landing-cta-test.js
@@ -6,47 +6,53 @@
 import { module, test } from 'qunit';
 import { setupRenderingTest } from 'ember-qunit';
 import { setupEngine } from 'ember-engines/test-support';
+import { setupMirage } from 'ember-cli-mirage/test-support';
 import hbs from 'htmlbars-inline-precompile';
 import { render } from '@ember/test-helpers';
 import { PAGE } from 'vault/tests/helpers/sync/sync-selectors';
+import sinon from 'sinon';
+
+const { cta } = PAGE;
 
 module('Integration | Component | sync | Secrets::LandingCta', function (hooks) {
   setupRenderingTest(hooks);
   setupEngine(hooks, 'sync');
+  setupMirage(hooks);
+
   hooks.beforeEach(function () {
     this.version = this.owner.lookup('service:version');
+    this.transitionStub = sinon.stub(this.owner.lookup('service:router'), 'transitionTo');
+
+    this.renderComponent = () =>
+      render(
+        hbs`
+          <Secrets::LandingCta @isActivated={{true}}/>
+        `,
+        { owner: this.engine }
+      );
   });
 
   test('it should render promotional copy for community version', async function (assert) {
-    await render(
-      hbs`
-     <Secrets::LandingCta />
-    `,
-      { owner: this.engine }
-    );
+    await this.renderComponent();
 
     assert
-      .dom(PAGE.cta.summary)
+      .dom(cta.summary)
       .hasText(
         'This enterprise feature allows you to sync secrets to platforms and tools across your stack to get secrets when and where you need them. Learn more about secrets sync'
       );
-    assert.dom(PAGE.cta.link).hasText('Learn more about secrets sync');
+    assert.dom(cta.link).hasText('Learn more about secrets sync');
   });
 
-  test('it should render enterprise copy', async function (assert) {
+  test('it should render enterprise copy and action', async function (assert) {
     this.version.type = 'enterprise';
-    await render(
-      hbs`
-     <Secrets::LandingCta />
-    `,
-      { owner: this.engine }
-    );
+
+    await this.renderComponent();
 
     assert
-      .dom(PAGE.cta.summary)
+      .dom(cta.summary)
       .hasText(
         'Sync secrets to platforms and tools across your stack to get secrets when and where you need them. Secrets sync tutorial'
       );
-    assert.dom(PAGE.cta.link).hasText('Secrets sync tutorial');
+    assert.dom(cta.link).hasText('Secrets sync tutorial');
   });
 });
diff --git a/ui/tests/integration/components/sync/secrets/page/overview-test.js b/ui/tests/integration/components/sync/secrets/page/overview-test.js
index abe428b4d2..7a86cb3242 100644
--- a/ui/tests/integration/components/sync/secrets/page/overview-test.js
+++ b/ui/tests/integration/components/sync/secrets/page/overview-test.js
@@ -41,32 +41,40 @@ module('Integration | Component | sync | Page::Overview', function (hooks) {
 
     const store = this.owner.lookup('service:store');
     this.destinations = await store.query('sync/destination', {});
+    this.activatedFeatures = ['secrets-sync'];
 
-    await render(
-      hbs`<Secrets::Page::Overview @destinations={{this.destinations}} @totalVaultSecrets={{7}} />`,
-      {
-        owner: this.engine,
-      }
-    );
+    this.renderComponent = () =>
+      render(
+        hbs`<Secrets::Page::Overview @destinations={{this.destinations}} @totalVaultSecrets={{7}} @activatedFeatures={{this.activatedFeatures}} @isAdapterError={{false}} />`,
+        {
+          owner: this.engine,
+        }
+      );
   });
 
   test('it should render landing cta component for community', async function (assert) {
     this.version.type = 'community';
-    this.set('destinations', []);
-    await settled();
+    this.destinations = [];
+
+    await this.renderComponent();
+
     assert.dom(title).hasText('Secrets Sync Enterprise feature', 'Page title renders');
     assert.dom(cta.button).doesNotExist('Create first destination button does not render');
   });
 
   test('it should render landing cta component for enterprise', async function (assert) {
-    this.set('destinations', []);
-    await settled();
+    this.destinations = [];
+
+    await this.renderComponent();
+
     assert.dom(title).hasText('Secrets Sync', 'Page title renders');
     assert.dom(cta.button).hasText('Create first destination', 'CTA action renders');
     assert.dom(cta.summary).exists('CTA renders');
   });
 
   test('it should render header, tabs and toolbar for overview state', async function (assert) {
+    await this.renderComponent();
+
     assert.dom(title).hasText('Secrets Sync', 'Page title renders');
     assert.dom(breadcrumb).exists({ count: 1 }, 'Correct number of breadcrumbs render');
     assert.dom(breadcrumb).includesText('Secrets Sync', 'Top level breadcrumb renders');
@@ -82,6 +90,9 @@ module('Integration | Component | sync | Page::Overview', function (hooks) {
       [new Date('2023-09-20T10:51:53.961861096-04:00'), 'MMMM do yyyy, h:mm:ss a'],
       {}
     );
+
+    await this.renderComponent();
+
     assert
       .dom(overviewCard.title('Secrets by destination'))
       .hasText('Secrets by destination', 'Overview card title renders for table');
@@ -110,6 +121,8 @@ module('Integration | Component | sync | Page::Overview', function (hooks) {
   });
 
   test('it should paginate secrets by destination table', async function (assert) {
+    await this.renderComponent();
+
     const { name, row } = overview.table;
     assert.dom(row).exists({ count: 3 }, 'Correct number of table rows render based on page size');
     assert.dom(name(0)).hasText('destination-aws', 'First destination renders on page 1');
@@ -124,9 +137,9 @@ module('Integration | Component | sync | Page::Overview', function (hooks) {
     this.server.get('/sys/sync/destinations/:type/:name/associations', () => {
       return new Response(403, {}, { errors: ['Permission denied'] });
     });
-    // since the request resolved trigger a page change and return an error from the associations endpoint
-    await click(pagination.next);
-    await settled();
+
+    await this.renderComponent();
+
     assert.dom(emptyStateTitle).hasText('Error fetching information', 'Empty state title renders');
     assert
       .dom(emptyStateMessage)
@@ -134,6 +147,8 @@ module('Integration | Component | sync | Page::Overview', function (hooks) {
   });
 
   test('it should render totals cards', async function (assert) {
+    await this.renderComponent();
+
     const { title, description, action, content } = overviewCard;
     const cardData = [
       {