diff --git a/client/src/pages/History.tsx b/client/src/pages/History.tsx
index a90b0a6..6d51925 100644
--- a/client/src/pages/History.tsx
+++ b/client/src/pages/History.tsx
@@ -110,6 +110,7 @@ const MONTHS = [
 ];
 
 const YEARS = Array.from({ length: 5 }, (_, index) => String(new Date().getFullYear() - index));
+const IMPORT_LOG_PAGE_SIZE = 200;
 
 function formatAccount(account: Pick<EmailAccount, "userName" | "userEmail" | "emailAddress">) {
   const owner = account.userName?.trim() || account.userEmail;
@@ -139,7 +140,11 @@ function TriggerBadge({ trigger }: { trigger: DetailedImportLog["importTrigger"]
 export default function History() {
   const { user } = useAuth();
   const isAdmin = user?.role === "admin";
-  const { data: logs, isLoading } = trpc.importLogs.getByUser.useQuery();
+  const [page, setPage] = useState(0);
+  const { data: logsPage, isLoading } = trpc.importLogs.getByUser.useQuery({
+    limit: IMPORT_LOG_PAGE_SIZE,
+    offset: page * IMPORT_LOG_PAGE_SIZE,
+  });
   const { data: emailAccounts, isLoading: accountsLoading } = trpc.emailImportService.getConfiguredAccounts.useQuery(undefined, {
     enabled: isAdmin,
     staleTime: 30_000,
@@ -148,7 +153,8 @@ export default function History() {
   const checkAccountNowMutation = trpc.emailImportService.checkAccountNow.useMutation();
   const utils = trpc.useUtils();
 
-  const detailedLogs = (logs ?? []) as DetailedImportLog[];
+  const detailedLogs = (logsPage?.items ?? []) as DetailedImportLog[];
+  const totalLogs = logsPage?.total ?? 0;
   const accounts = (emailAccounts ?? []) as EmailAccount[];
   const configuredAccounts = useMemo(() => accounts.filter((account) => account.isConfigured === 1), [accounts]);
 
@@ -329,7 +335,14 @@ export default function History() {
             <Select value={triggerFilter} onValueChange={(value) => setTriggerFilter(value as TriggerFilter)}><SelectTrigger className="h-8 w-32 bg-white text-sm"><SelectValue placeholder="Déclencheur" /></SelectTrigger><SelectContent><SelectItem value="all">Tout mode</SelectItem><SelectItem value="manual">Manuel</SelectItem><SelectItem value="automatic">Planifié</SelectItem><SelectItem value="unknown">Non tracé</SelectItem></SelectContent></Select>
             {hasFilters && <Button variant="ghost" size="sm" className="h-8 px-2 text-gray-500" onClick={() => { setYearFilter("all"); setMonthFilter("all"); setSourceFilter("all"); setTriggerFilter("all"); }} title="Réinitialiser les filtres"><X className="h-4 w-4" /></Button>}
           </div>
-          <span className="ml-auto text-sm text-gray-500">{filteredLogs.length} import{filteredLogs.length > 1 ? "s" : ""} · {counts.totalDetected} facture{counts.totalDetected > 1 ? "s" : ""} détectée{counts.totalDetected > 1 ? "s" : ""}</span>
+          <div className="ml-auto flex items-center gap-2 text-sm text-gray-500">
+            <span>{filteredLogs.length} import{filteredLogs.length > 1 ? "s" : ""} · {counts.totalDetected} facture{counts.totalDetected > 1 ? "s" : ""} détectée{counts.totalDetected > 1 ? "s" : ""}</span>
+            {totalLogs > IMPORT_LOG_PAGE_SIZE && <>
+              <Button variant="outline" size="sm" className="h-8" disabled={page === 0} onClick={() => setPage((current) => current - 1)}>Précédent</Button>
+              <span className="whitespace-nowrap">Page {page + 1}</span>
+              <Button variant="outline" size="sm" className="h-8" disabled={(page + 1) * IMPORT_LOG_PAGE_SIZE >= totalLogs} onClick={() => setPage((current) => current + 1)}>Suivant</Button>
+            </>}
+          </div>
         </CardContent></Card>
 
         <Card><CardContent className="overflow-x-auto p-0">
diff --git a/client/src/pages/ImportReport.tsx b/client/src/pages/ImportReport.tsx
index 6a10340..bdb19bb 100644
--- a/client/src/pages/ImportReport.tsx
+++ b/client/src/pages/ImportReport.tsx
@@ -41,6 +41,8 @@ type ErrorDetail = {
   value?: string;
 };
 
+const IMPORT_LOG_PAGE_SIZE = 200;
+
 function parseJson<T>(str: string | null | undefined): T[] {
   if (!str) return [];
   try {
@@ -59,7 +61,13 @@ function StatusBadge({ imported, duplicates, errors }: { imported: number; dupli
 }
 
 export default function ImportReport() {
-  const { data: logs, isLoading } = trpc.importLogs.getByUser.useQuery();
+  const [page, setPage] = useState(0);
+  const { data: logsPage, isLoading } = trpc.importLogs.getByUser.useQuery({
+    limit: IMPORT_LOG_PAGE_SIZE,
+    offset: page * IMPORT_LOG_PAGE_SIZE,
+  });
+  const logs = (logsPage?.items ?? []) as ImportLog[];
+  const totalLogs = logsPage?.total ?? 0;
   const [yearFilter, setYearFilter] = useState<string>(String(new Date().getFullYear()));
   const [monthFilter, setMonthFilter] = useState<string>("all");
   const [statusFilter, setStatusFilter] = useState<string>("all");
@@ -319,6 +327,14 @@ export default function ImportReport() {
                 )}
               </div>
             </div>
+            {totalLogs > IMPORT_LOG_PAGE_SIZE && (
+              <div className="mt-3 flex items-center justify-end gap-2 text-xs text-gray-500">
+                <span>{totalLogs.toLocaleString("fr-FR")} journaux</span>
+                <Button size="sm" variant="outline" className="h-8" disabled={page === 0} onClick={() => setPage((current) => current - 1)}>Précédent</Button>
+                <span>Page {page + 1}</span>
+                <Button size="sm" variant="outline" className="h-8" disabled={(page + 1) * IMPORT_LOG_PAGE_SIZE >= totalLogs} onClick={() => setPage((current) => current + 1)}>Suivant</Button>
+              </div>
+            )}
           </CardContent>
         </Card>
 
diff --git a/server/db.ts b/server/db.ts
index 4047bb7..e6a8509 100644
--- a/server/db.ts
+++ b/server/db.ts
@@ -571,10 +571,15 @@ export async function getAllImportLogs(): Promise<ImportLog[]> {
  * les paramètres sensibles de messagerie. L'administrateur peut ainsi relier
  * chaque import à son compte, fichier source et déclencheur.
  */
-export async function getImportLogsWithDetailsByUser(userId: number) {
+export type ImportLogPageOptions = {
+  limit: number;
+  offset: number;
+};
+
+export async function getImportLogsWithDetailsByUser(userId: number, options: ImportLogPageOptions) {
   const db = await getDb();
-  if (!db) return [];
-  return db.select({
+  if (!db) return { items: [], total: 0 };
+  const items = await db.select({
     ...getTableColumns(importLogs),
     userName: users.name,
     userEmail: users.email,
@@ -585,13 +590,17 @@ export async function getImportLogsWithDetailsByUser(userId: number) {
     .leftJoin(users, eq(importLogs.userId, users.id))
     .leftJoin(sourceFiles, eq(importLogs.sourceFileId, sourceFiles.id))
     .where(eq(importLogs.userId, userId))
-    .orderBy(desc(importLogs.importedAt));
+    .orderBy(desc(importLogs.importedAt))
+    .limit(options.limit)
+    .offset(options.offset);
+  const [total] = await db.select({ total: count() }).from(importLogs).where(eq(importLogs.userId, userId));
+  return { items, total: Number(total?.total ?? 0) };
 }
 
-export async function getAllImportLogsWithDetails() {
+export async function getAllImportLogsWithDetails(options: ImportLogPageOptions) {
   const db = await getDb();
-  if (!db) return [];
-  return db.select({
+  if (!db) return { items: [], total: 0 };
+  const items = await db.select({
     ...getTableColumns(importLogs),
     userName: users.name,
     userEmail: users.email,
@@ -601,7 +610,11 @@ export async function getAllImportLogsWithDetails() {
     .from(importLogs)
     .leftJoin(users, eq(importLogs.userId, users.id))
     .leftJoin(sourceFiles, eq(importLogs.sourceFileId, sourceFiles.id))
-    .orderBy(desc(importLogs.importedAt));
+    .orderBy(desc(importLogs.importedAt))
+    .limit(options.limit)
+    .offset(options.offset);
+  const [total] = await db.select({ total: count() }).from(importLogs);
+  return { items, total: Number(total?.total ?? 0) };
 }
 
 export async function deleteAllImportLogs(userId: number | null): Promise<void> {
diff --git a/server/importLogPagination.test.ts b/server/importLogPagination.test.ts
new file mode 100644
index 0000000..eebf3aa
--- /dev/null
+++ b/server/importLogPagination.test.ts
@@ -0,0 +1,22 @@
+import { describe, expect, it } from "vitest";
+import {
+  DEFAULT_IMPORT_LOG_PAGE_SIZE,
+  MAX_IMPORT_LOG_PAGE_SIZE,
+  normalizeImportLogPagination,
+} from "../shared/importLogPagination";
+
+describe("pagination des journaux d'import", () => {
+  it("retourne une page bornée par défaut au lieu de l'historique complet", () => {
+    expect(normalizeImportLogPagination()).toEqual({
+      limit: DEFAULT_IMPORT_LOG_PAGE_SIZE,
+      offset: 0,
+    });
+  });
+
+  it("borne les entrées utilisateur pour préserver la réactivité", () => {
+    expect(normalizeImportLogPagination({ limit: MAX_IMPORT_LOG_PAGE_SIZE + 1, offset: -20 })).toEqual({
+      limit: MAX_IMPORT_LOG_PAGE_SIZE,
+      offset: 0,
+    });
+  });
+});
diff --git a/server/routers.ts b/server/routers.ts
index a4ac4e0..92c2dee 100644
--- a/server/routers.ts
+++ b/server/routers.ts
@@ -3,6 +3,7 @@ import { COOKIE_NAME } from "@shared/const";
 import { BAP_MIN_QUALITY_SCORE, meetsBapQualityThreshold } from "@shared/bapEligibility";
 import { requiresBapBeforeOriginalPdfExport } from "@shared/bapExportGuard";
 import { calculateInvoiceQualityScore, withCalculatedInvoiceQuality } from "@shared/invoiceQuality";
+import { normalizeImportLogPagination } from "@shared/importLogPagination";
 import { webPortalUrlSchema } from "./webPortalUrl";
 
 interface Condition {
@@ -1727,12 +1728,15 @@ export const appRouter = router({
   
   // ============= IMPORT LOGS ROUTES =============
   importLogs: router({
-    getByUser: protectedProcedure.query(async ({ ctx }) => {
+    getByUser: protectedProcedure
+      .input(z.object({ limit: z.number().int().positive().optional(), offset: z.number().int().min(0).optional() }).optional())
+      .query(async ({ ctx, input }) => {
+      const pagination = normalizeImportLogPagination(input);
       // Les admins voient tous les logs d'import
       if (ctx.user.role === 'admin') {
-        return getAllImportLogsWithDetails();
+        return getAllImportLogsWithDetails(pagination);
       }
-      return getImportLogsWithDetailsByUser(ctx.user.id);
+      return getImportLogsWithDetailsByUser(ctx.user.id, pagination);
     }),
     
     deleteAll: protectedProcedure.mutation(async ({ ctx }) => {
diff --git a/shared/importLogPagination.ts b/shared/importLogPagination.ts
new file mode 100644
index 0000000..a2bdfe5
--- /dev/null
+++ b/shared/importLogPagination.ts
@@ -0,0 +1,22 @@
+export const DEFAULT_IMPORT_LOG_PAGE_SIZE = 200;
+export const MAX_IMPORT_LOG_PAGE_SIZE = 500;
+
+export type ImportLogPaginationInput = {
+  limit?: number;
+  offset?: number;
+};
+
+/**
+ * Normalise les limites avant toute lecture de journal. Les imports historiques
+ * peuvent contenir plusieurs dizaines de milliers de lignes : l'interface ne
+ * doit jamais tenter de les transférer en une seule requête.
+ */
+export function normalizeImportLogPagination(input?: ImportLogPaginationInput) {
+  const requestedLimit = input?.limit ?? DEFAULT_IMPORT_LOG_PAGE_SIZE;
+  const requestedOffset = input?.offset ?? 0;
+
+  return {
+    limit: Math.min(Math.max(Math.trunc(requestedLimit), 1), MAX_IMPORT_LOG_PAGE_SIZE),
+    offset: Math.max(Math.trunc(requestedOffset), 0),
+  };
+}
diff --git a/todo.md b/todo.md
index 222efd4..fc8199f 100644
--- a/todo.md
+++ b/todo.md
@@ -1,5 +1,10 @@
 # Invoice Analyzer - TODO
 
+## Incident historique et rapport d’import — production — 09/10/2026
+- [x] Tracer les requêtes et données : 101 886 journaux sont renvoyés sans limite à l’interface
+- [x] Borner et paginer la récupération des journaux sans supprimer l’historique
+- [ ] Valider l’historique et le rapport en recette puis en production
+
 ## Cohérence export / BAP — production — 09/10/2026
 - [x] Tracer les états : Amazon et Inmac ont été exportées par le flux PDF générique le 30/09, sans BAP validé ni historique BAP
 - [x] Bloquer tout nouvel export PDF hors abonnement avant validation BAP et rendre l’état historique explicite dans l’interface