diff --git a/apps/web/src/app/features/documents/document-form.page.html b/apps/web/src/app/features/documents/document-form.page.html
index 4915457..8f692bc 100644
--- a/apps/web/src/app/features/documents/document-form.page.html
+++ b/apps/web/src/app/features/documents/document-form.page.html
@@ -91,6 +91,14 @@
         (picked)="onPartner($event)"
       />
     }
+    @case ('checkbox') {
+      <sbo-checkbox-field
+        [label]="f.label"
+        [readonly]="readOnly() || !!f.readonly || locked(f)"
+        [value]="header()[f.key] === 'tYES'"
+        (valueChange)="setHeader(f.key, $event ? 'tYES' : 'tNO')"
+      />
+    }
     @case ('lookup') {
       <sbo-lookup-field
         [label]="f.label"
diff --git a/apps/web/src/app/features/documents/document-form.page.ts b/apps/web/src/app/features/documents/document-form.page.ts
index ba32ad4..fd312bb 100644
--- a/apps/web/src/app/features/documents/document-form.page.ts
+++ b/apps/web/src/app/features/documents/document-form.page.ts
@@ -8,7 +8,7 @@ import { map } from 'rxjs';
 import { API_URL, apiErrorMessage } from '../../core/api';
 import { formatNumber } from '../../core/format';
 import { SlDocumentApi } from '../../core/sl/sl-document';
-import { DateField, LookupField, NumberField, NumberInput, SboField, SelectField, SelectInput, TextField, TextInput, TextareaField } from '../../shared/form';
+import { CheckboxField, DateField, LookupField, NumberField, NumberInput, SboField, SelectField, SelectInput, TextField, TextInput, TextareaField } from '../../shared/form';
 import type { GridLine, GridMultiAdd } from '../../shared/grid/grid.types';
 import { LinesGrid } from '../../shared/grid/lines-grid';
 import type { VhLookup } from '../../shared/value-help/value-help.types';
@@ -63,7 +63,7 @@ const folioAsNumber = (h: DocRecord): DocRecord => {
 @Component({
   selector: 'sbo-document-form-page',
   changeDetection: ChangeDetectionStrategy.OnPush,
-  imports: [DateField, Icon, LinesGrid, LookupField, MenuButton, NgTemplateOutlet, NumberField, NumberInput, RouterLink, SboField, SelectField, SelectInput, SboWindow, TextField, TextInput, TextareaField, Toolbar, ValueHelp],
+  imports: [CheckboxField, DateField, Icon, LinesGrid, LookupField, MenuButton, NgTemplateOutlet, NumberField, NumberInput, RouterLink, SboField, SelectField, SelectInput, SboWindow, TextField, TextInput, TextareaField, Toolbar, ValueHelp],
   templateUrl: './document-form.page.html',
   styles: `
     h1 { margin: 0 0 6px; font-size: 18px; font-weight: 600; }
diff --git a/apps/web/src/app/features/documents/screen-extensions.spec.ts b/apps/web/src/app/features/documents/screen-extensions.spec.ts
index 4eafeb6..881430c 100644
--- a/apps/web/src/app/features/documents/screen-extensions.spec.ts
+++ b/apps/web/src/app/features/documents/screen-extensions.spec.ts
@@ -344,3 +344,47 @@ describe('formulario con campos ocultos o de solo lectura', () => {
     expect(input('Indicador')!.readOnly).toBe(false);
   });
 });
+
+describe('campos Sí/No (checkbox) en los documentos', () => {
+  it('un campo de usuario de tipo casilla se dibuja como casilla y guarda tYES / tNO', async () => {
+    TestBed.resetTestingModule();
+    const screen = by(
+      applyExtensions(BASE_SCREENS, { '/ventas/ordenes': { headerLeft: [{ type: 'checkbox', key: 'U_Urgente', label: 'Urgente' }] } }),
+      '/ventas/ordenes',
+    );
+    const route = {
+      snapshot: { data: { screen, title: 'Documento' }, paramMap: convertToParamMap({ docEntry: '5' }) },
+      paramMap: of(convertToParamMap({ docEntry: '5' })),
+    };
+    await TestBed.configureTestingModule({
+      imports: [DocumentFormPage],
+      providers: [provideRouter([]), provideHttpClient(), provideHttpClientTesting(), { provide: ActivatedRoute, useValue: route }],
+    }).compileComponents();
+    const ctrl = TestBed.inject(HttpTestingController);
+    vi.spyOn(TestBed.inject(Router), 'navigate').mockResolvedValue(true);
+    const fixture = TestBed.createComponent(DocumentFormPage);
+    const tick = async () => {
+      fixture.detectChanges();
+      await new Promise((r) => setTimeout(r));
+      fixture.detectChanges();
+    };
+    await tick();
+    ctrl.match((r) => r.url === '/api/sl/SalesTaxCodes').forEach((r) => r.flush({ value: [] }));
+    ctrl.match((r) => r.url === '/api/sl/AdditionalExpenses').forEach((r) => r.flush({ value: [] }));
+    ctrl.match((r) => r.url.includes('SeriesService')).forEach((r) => r.flush({ value: [] }));
+    ctrl.expectOne('/api/sl/Orders/5').flush({
+      'odata.etag': 'W/"1"', DocEntry: 5, DocNum: 5, CardCode: 'C1', CardName: 'ACME', U_Urgente: 'tNO',
+      DocDate: '2026-09-11T00:00:00Z', DocDueDate: '2026-09-20T00:00:00Z', DocumentStatus: 'bost_Open', Cancelled: 'tNO',
+      DocumentLines: [{ LineNum: 0, ItemCode: 'A1', ItemDescription: 'Pieza', Quantity: 1, Price: 10, TaxCode: '', LineTotal: 10 }],
+    });
+    await tick();
+    const el = fixture.nativeElement as HTMLElement;
+    const box = [...el.querySelectorAll('sbo-checkbox-field')].find((f) => f.querySelector('label')?.textContent?.trim() === 'Urgente')!.querySelector('input[type=checkbox]') as HTMLInputElement;
+    expect(box.checked).toBe(false);
+    box.click();
+    await tick();
+    (el.querySelector('.actions .btn.main') as HTMLElement).click();
+    await tick();
+    expect(ctrl.expectOne((r) => r.method === 'PATCH').request.body).toEqual({ U_Urgente: 'tYES' });
+  });
+});