diff --git a/.eslintrc.cjs b/.eslintrc.cjs
index 5416cd98fef..682a30864f8 100644
--- a/.eslintrc.cjs
+++ b/.eslintrc.cjs
@@ -51,6 +51,7 @@ const dictionary = [
   'installed',
   'is',
   'issue',
+  'item',
   'label',
   'list',
   'link',
@@ -75,6 +76,7 @@ const dictionary = [
   'property',
   'records',
   'recycle',
+  'resolver',
   'retention',
   'role',
   'room',
@@ -93,9 +95,12 @@ const dictionary = [
   'table',
   'teams',
   'threat',
+  'to',
+  'todo',
   'token',
   'type',
   'unit',
+  'url',
   'user',
   'web',
   'webhook'
diff --git a/docs/docs/cmd/external/connection/connection-urltoitemresolver-add.mdx b/docs/docs/cmd/external/connection/connection-urltoitemresolver-add.mdx
new file mode 100644
index 00000000000..e63d4160c04
--- /dev/null
+++ b/docs/docs/cmd/external/connection/connection-urltoitemresolver-add.mdx
@@ -0,0 +1,47 @@
+import Global from '/docs/cmd/_global.mdx';
+
+# external connection urltoitemresolver add
+
+Adds a URL to item resolver to an external connection
+
+## Usage
+
+```sh
+m365 external connection urltoitemresolver add [options]
+```
+
+## Options
+
+```md definition-list
+`-c, --externalConnectionId <externalConnectionId>`
+: The ID of the external connection to which to add the resolver
+
+`--baseUrls <baseUrls>`
+: Comma-separated list of base URLs
+
+`--urlPattern <urlPattern>`
+: Regex pattern to match URLs
+
+`-i, --itemId <itemId>`
+: Pattern that matches captured matches from the URL with the external item ID
+
+`-p, --priority <priority>`
+: Integer that defines the resolution order
+```
+<Global />
+
+## Examples
+
+Adds a URL to item resolver to an existing connection
+
+```sh
+m365 external connection urltoitemresolver add --externalConnectionId "samplesolutiongallery" --baseUrls "https://adoption.microsoft.com" --urlPattern "/sample-solution-gallery/sample/(?<sampleId>[^/]+)" --itemId "{sampleId}" --priority 1
+```
+
+## Response
+
+The command won't return a response on success.
+
+## More information
+
+- Microsoft Graph external connection activitySettings: [https://learn.microsoft.com/graph/api/resources/externalconnectors-activitysettings?view=graph-rest-1.0](https://learn.microsoft.com/graph/api/resources/externalconnectors-activitysettings?view=graph-rest-1.0)
diff --git a/docs/src/config/sidebars.ts b/docs/src/config/sidebars.ts
index b30f19b6bf9..ece28ae1fc6 100644
--- a/docs/src/config/sidebars.ts
+++ b/docs/src/config/sidebars.ts
@@ -659,6 +659,11 @@ const sidebars: SidebarsConfig = {
               type: 'doc',
               label: 'connection schema add',
               id: 'cmd/external/connection/connection-schema-add'
+            },
+            {
+              type: 'doc',
+              label: 'connection urltoitemresolver add',
+              id: 'cmd/external/connection/connection-urltoitemresolver-add'
             }
           ]
         },
diff --git a/src/m365/external/commands.ts b/src/m365/external/commands.ts
index 6f1cd6dcb84..89770e0531a 100644
--- a/src/m365/external/commands.ts
+++ b/src/m365/external/commands.ts
@@ -8,6 +8,7 @@ export default {
   CONNECTION_LIST: `${prefix} connection list`,
   CONNECTION_REMOVE: `${prefix} connection remove`,
   CONNECTION_SCHEMA_ADD: `${prefix} connection schema add`,
+  CONNECTION_URLTOITEMRESOLVER_ADD: `${prefix} connection urltoitemresolver add`,
   EXTERNALCONNECTION_ADD: `${searchPrefix} externalconnection add`,
   EXTERNALCONNECTION_GET: `${searchPrefix} externalconnection get`,
   EXTERNALCONNECTION_LIST: `${searchPrefix} externalconnection list`,
diff --git a/src/m365/external/commands/connection/connection-urltoitemresolver-add.spec.ts b/src/m365/external/commands/connection/connection-urltoitemresolver-add.spec.ts
new file mode 100644
index 00000000000..855ec12f707
--- /dev/null
+++ b/src/m365/external/commands/connection/connection-urltoitemresolver-add.spec.ts
@@ -0,0 +1,125 @@
+import assert from 'assert';
+import sinon from 'sinon';
+import auth from '../../../../Auth.js';
+import { CommandError } from '../../../../Command.js';
+import { Logger } from '../../../../cli/Logger.js';
+import request from '../../../../request.js';
+import { telemetry } from '../../../../telemetry.js';
+import { pid } from '../../../../utils/pid.js';
+import { session } from '../../../../utils/session.js';
+import { sinonUtil } from '../../../../utils/sinonUtil.js';
+import commands from '../../commands.js';
+import command from './connection-urltoitemresolver-add.js';
+
+describe(commands.CONNECTION_URLTOITEMRESOLVER_ADD, () => {
+  let logger: Logger;
+
+  before(() => {
+    sinon.stub(auth, 'restoreAuth').resolves();
+    sinon.stub(telemetry, 'trackEvent').returns();
+    sinon.stub(pid, 'getProcessName').returns('');
+    sinon.stub(session, 'getId').returns('');
+    auth.service.connected = true;
+  });
+
+  beforeEach(() => {
+    logger = {
+      log: async () => { },
+      logRaw: async () => { },
+      logToStderr: async () => { }
+    };
+    (command as any).items = [];
+  });
+
+  afterEach(() => {
+    sinonUtil.restore([
+      request.patch
+    ]);
+  });
+
+  after(() => {
+    sinon.restore();
+    auth.service.connected = false;
+  });
+
+  it('has correct name', () => {
+    assert.strictEqual(command.name, commands.CONNECTION_URLTOITEMRESOLVER_ADD);
+  });
+
+  it('has a description', () => {
+    assert.notStrictEqual(command.description, null);
+  });
+
+  it('adds item to URL resolver to an existing external connection', async () => {
+    sinon.stub(request, 'patch').callsFake(async (opts: any) => {
+      if (opts.url === `https://graph.microsoft.com/v1.0/external/connections/conn`) {
+        return {};
+      }
+      throw 'Invalid request';
+    });
+    const options: any = {
+      externalConnectionId: 'conn',
+      baseUrls: 'https://contoso.com',
+      urlPattern: '/(?<id>.*)',
+      itemId: '{id}',
+      priority: 1
+    };
+    await command.action(logger, { options } as any);
+  });
+
+  it('correctly handles error', async () => {
+    sinon.stub(request, 'patch').callsFake(() => {
+      throw {
+        "error": {
+          "code": "Error",
+          "message": "An error has occurred",
+          "innerError": {
+            "request-id": "9b0df954-93b5-4de9-8b99-43c204a8aaf8",
+            "date": "2018-04-24T18:56:48"
+          }
+        }
+      };
+    });
+
+    const options: any = {
+      externalConnectionId: 'conn',
+      baseUrls: 'https://contoso.com',
+      urlPattern: '/(?<id>.*)',
+      itemId: '{id}',
+      priority: 1
+    };
+
+    await assert.rejects(command.action(logger, { options } as any),
+      new CommandError(`An error has occurred`));
+  });
+
+  it('supports specifying connection ID', () => {
+    const containsOption = !!command.options
+      .find(o => o.option.indexOf('--externalConnectionId') > -1);
+    assert(containsOption);
+  });
+
+  it('supports specifying base URLs', () => {
+    const containsOption = !!command.options
+      .find(o => o.option.indexOf('--baseUrls') > -1);
+    assert(containsOption);
+  });
+
+  it('supports specifying URL patterns', () => {
+    const containsOption = !!command.options
+      .find(o => o.option.indexOf('--urlPattern') > -1);
+    assert(containsOption);
+  });
+
+  it('supports specifying item ID', () => {
+    const containsOption = !!command.options
+      .find(o => o.option.indexOf('--itemId') > -1);
+    assert(containsOption);
+  });
+
+  it('supports specifying priority', () => {
+    const containsOption = !!command.options
+      .find(o => o.option.indexOf('--priority') > -1);
+    assert(containsOption);
+  });
+});
diff --git a/src/m365/external/commands/connection/connection-urltoitemresolver-add.ts b/src/m365/external/commands/connection/connection-urltoitemresolver-add.ts
new file mode 100644
index 00000000000..2427c8f99e8
--- /dev/null
+++ b/src/m365/external/commands/connection/connection-urltoitemresolver-add.ts
@@ -0,0 +1,92 @@
+import { ExternalConnectors } from '@microsoft/microsoft-graph-types/microsoft-graph';
+import GlobalOptions from '../../../../GlobalOptions.js';
+import { Logger } from '../../../../cli/Logger.js';
+import request, { CliRequestOptions } from '../../../../request.js';
+import GraphCommand from '../../../base/GraphCommand.js';
+import commands from '../../commands.js';
+
+interface CommandArgs {
+  options: Options;
+}
+
+interface Options extends GlobalOptions {
+  externalConnectionId: string;
+  baseUrls: string;
+  urlPattern: string;
+  itemId: string;
+  priority: number;
+}
+
+class ExternalConnectionUrlToItemResolverAddCommand extends GraphCommand {
+  public get name(): string {
+    return commands.CONNECTION_URLTOITEMRESOLVER_ADD;
+  }
+
+  public get description(): string {
+    return 'Adds a URL to item resolver to an external connection';
+  }
+
+  constructor() {
+    super();
+
+    this.#initOptions();
+  }
+
+  #initOptions(): void {
+    this.options.unshift(
+      {
+        option: '-c, --externalConnectionId <externalConnectionId>'
+      },
+      {
+        option: '--baseUrls <baseUrls>'
+      },
+      {
+        option: '--urlPattern <urlPattern>'
+      },
+      {
+        option: '-i, --itemId <itemId>'
+      },
+      {
+        option: '-p, --priority <priority>'
+      }
+    );
+  }
+
+  public async commandAction(logger: Logger, args: CommandArgs): Promise<void> {
+    const baseUrls: string[] = args.options.baseUrls.split(',').map(b => b.trim());
+
+    const itemIdResolver: ExternalConnectors.ItemIdResolver = {
+      itemId: args.options.itemId,
+      priority: args.options.priority,
+      urlMatchInfo: {
+        baseUrls: baseUrls,
+        urlPattern: args.options.urlPattern
+      }
+    };
+    // not a part of the type definition, but required by the API
+    (itemIdResolver as any)['@odata.type'] = '#microsoft.graph.externalConnectors.itemIdResolver';
+
+    const requestOptions: CliRequestOptions = {
+      url: `${this.resource}/v1.0/external/connections/${args.options.externalConnectionId}`,
+      headers: {
+        accept: 'application/json;odata.metadata=none',
+        'content-type': 'application/json'
+      },
+      responseType: 'json',
+      data: {
+        activitySettings: {
+          urlToItemResolvers: [itemIdResolver]
+        }
+      } as ExternalConnectors.ExternalConnection
+    };
+
+    try {
+      await request.patch(requestOptions);
+    }
+    catch (err: any) {
+      this.handleRejectedODataJsonPromise(err);
+    }
+  }
+}
+
+export default new ExternalConnectionUrlToItemResolverAddCommand();
\ No newline at end of file