diff --git a/docs/03-api.md b/docs/03-api.md
index e082a95..3f98d53 100644
--- a/docs/03-api.md
+++ b/docs/03-api.md
@@ -309,7 +309,8 @@ stateDiagram-v2
 - **Edición en bloque**: `bulkUpdateIssues` / `POST /api/issues/bulk` aplica el mismo cambio (estado, persona o
   `unassign`, sprint o `noSprint`, release o `noRelease`, prioridad, etiquetas que añadir) a hasta 100 tickets. Cada
   uno pasa por los comandos normales (permisos, flujo, sprints y releases abiertos) y puede negarse sin parar al resto;
-  la respuesta dice cuáles.
+  la respuesta dice cuáles. La web parte selecciones mayores (la Lista enseña hasta 200) en tandas de 100, una tras
+  otra, y suma el resultado.
 - **Archivar una release**: `archiveRelease(releaseId, moveTo)` / `POST /api/releases/{id}/archive` (`{ moveTo }`).
   Sus tickets sin terminar pasan a `moveTo` (otra release abierta del mismo proyecto) o, sin él, se quedan sin release;
   los terminados se quedan, como registro de lo que salió. Igual que al cerrar un sprint con `carryOverTo`.
diff --git a/libs/web/tracker/domain/src/index.ts b/libs/web/tracker/domain/src/index.ts
index 9081384..a7e107d 100644
--- a/libs/web/tracker/domain/src/index.ts
+++ b/libs/web/tracker/domain/src/index.ts
@@ -1,5 +1,6 @@
 export * from './lib/models/enums';
 export * from './lib/models/models';
+export * from './lib/models/bulk';
 export * from './lib/models/inputs';
 export * from './lib/models/workflow';
 export * from './lib/ports/gateways';
diff --git a/libs/web/tracker/domain/src/lib/models/bulk.spec.ts b/libs/web/tracker/domain/src/lib/models/bulk.spec.ts
new file mode 100644
index 0000000..e41816a
--- /dev/null
+++ b/libs/web/tracker/domain/src/lib/models/bulk.spec.ts
@@ -0,0 +1,26 @@
+import { bulkBatches, MAX_BULK, mergeBulkResults } from './bulk';
+
+describe('bulk changes', () => {
+  it('split into batches the API takes, in order', () => {
+    const ids = Array.from({ length: 230 }, (_, i) => `i${i}`);
+    const batches = bulkBatches(ids);
+    expect(batches.map((b) => b.length)).toEqual([MAX_BULK, MAX_BULK, 30]);
+    expect(batches.flat()).toEqual(ids);
+    expect(bulkBatches([])).toEqual([]);
+  });
+
+  it('add the batches up', () => {
+    expect(
+      mergeBulkResults([
+        { updated: 2, results: [{ issueId: 'a', ok: true, error: null }] },
+        { updated: 0, results: [{ issueId: 'b', ok: false, error: 'No' }] },
+      ]),
+    ).toEqual({
+      updated: 2,
+      results: [
+        { issueId: 'a', ok: true, error: null },
+        { issueId: 'b', ok: false, error: 'No' },
+      ],
+    });
+  });
+});
diff --git a/libs/web/tracker/domain/src/lib/models/bulk.ts b/libs/web/tracker/domain/src/lib/models/bulk.ts
new file mode 100644
index 0000000..c2f2c39
--- /dev/null
+++ b/libs/web/tracker/domain/src/lib/models/bulk.ts
@@ -0,0 +1,20 @@
+import { BulkResult } from './inputs';
+
+/** The API takes at most this many tickets per bulk change. */
+export const MAX_BULK = 100;
+
+/** The tickets in batches the API takes, in order. */
+export function bulkBatches(issueIds: string[], size = MAX_BULK): string[][] {
+  const batches: string[][] = [];
+  for (let start = 0; start < issueIds.length; start += size)
+    batches.push(issueIds.slice(start, start + size));
+  return batches;
+}
+
+/** Several batches' results as one. */
+export function mergeBulkResults(results: BulkResult[]): BulkResult {
+  return {
+    updated: results.reduce((sum, r) => sum + r.updated, 0),
+    results: results.flatMap((r) => r.results),
+  };
+}
diff --git a/libs/web/tracker/infrastructure/src/lib/adapters/graphql-issues.gateway.ts b/libs/web/tracker/infrastructure/src/lib/adapters/graphql-issues.gateway.ts
index 5d91ddd..a562594 100644
--- a/libs/web/tracker/infrastructure/src/lib/adapters/graphql-issues.gateway.ts
+++ b/libs/web/tracker/infrastructure/src/lib/adapters/graphql-issues.gateway.ts
@@ -4,6 +4,7 @@ import {
   BoardFilter,
   BulkChange,
   BulkResult,
+  bulkBatches,
   ChangeStatusInput,
   CommandResult,
   CreateIssueInput,
@@ -16,9 +17,10 @@ import {
   IssueSummary,
   LinkIssuesInput,
   MyIssuesFilter,
+  mergeBulkResults,
   UpdateIssueInput,
 } from '@task-stream/web/tracker/domain';
-import { map, Observable } from 'rxjs';
+import { concatMap, from, map, Observable, toArray } from 'rxjs';
 import {
   AddChecklistItemDocument,
   AssignIssueDocument,
@@ -288,7 +290,19 @@ export class GraphqlIssuesGateway extends IssuesGateway {
       .pipe(map((d) => d.trash.map(toIssueSummary)));
   }
 
+  /** In batches of what the API takes, one after another, added up. */
   bulkUpdate(issueIds: string[], change: BulkChange): Observable<BulkResult> {
+    return from(bulkBatches(issueIds)).pipe(
+      concatMap((batch) => this.bulkBatch(batch, change)),
+      toArray(),
+      map(mergeBulkResults),
+    );
+  }
+
+  private bulkBatch(
+    issueIds: string[],
+    change: BulkChange,
+  ): Observable<BulkResult> {
     return this.gql
       .mutate(BulkUpdateIssuesDocument, {
         input: {