diff --git a/frontend/src/app/syntheseModule/synthese-results/synthese-list/modal-download/modal-download.component.html b/frontend/src/app/syntheseModule/synthese-results/synthese-list/modal-download/modal-download.component.html
index ea78a130c8..cee358a154 100644
--- a/frontend/src/app/syntheseModule/synthese-results/synthese-list/modal-download/modal-download.component.html
+++ b/frontend/src/app/syntheseModule/synthese-results/synthese-list/modal-download/modal-download.component.html
@@ -44,9 +44,8 @@
       <b>seulement</b>
       les {{ syntheseConfig.NB_MAX_OBS_MAP }} dernières observations correspondant à votre requête.
     </div>
-
     <div
-      *ngIf="syntheseConfig.NB_MAX_OBS_EXPORT > syntheseConfig.NB_MAX_OBS_MAP"
+      *ngIf="!tooManyObsForExport"
       class="alert alert-warning"
       role="alert"
     >
@@ -56,7 +55,21 @@
     </div>
   </div>
 
-  <div *ngIf="!tooManyObs || syntheseConfig.NB_MAX_OBS_EXPORT > syntheseConfig.NB_MAX_OBS_MAP">
+  <div *ngIf="tooManyObsForExport">
+    <div
+      class="alert alert-danger"
+      role="alert"
+    >
+      <b>Export Limité !</b>
+      <p>Trop d'observations à exporter.</p>
+      <p>
+        En exportant les données, vous ne pourrez télécharger que les
+        <b>{{ syntheseConfig.NB_MAX_OBS_EXPORT }}</b>
+        observations les plus récentes.
+      </p>
+    </div>
+  </div>
+  <div>
     <div class="my-3 pt-2">
       <h5 class="second-color">Télécharger les observations</h5>
       <button
diff --git a/frontend/src/app/syntheseModule/synthese-results/synthese-list/modal-download/modal-download.component.ts b/frontend/src/app/syntheseModule/synthese-results/synthese-list/modal-download/modal-download.component.ts
index 54ae87fcb2..b48f97b0f1 100644
--- a/frontend/src/app/syntheseModule/synthese-results/synthese-list/modal-download/modal-download.component.ts
+++ b/frontend/src/app/syntheseModule/synthese-results/synthese-list/modal-download/modal-download.component.ts
@@ -13,7 +13,7 @@ export class SyntheseModalDownloadComponent {
   public syntheseConfig = null;
 
   @Input() tooManyObs = false;
-
+  @Input() tooManyObsForExport = false;
   constructor(
     public activeModal: NgbActiveModal,
     public _dataService: SyntheseDataService,
diff --git a/frontend/src/app/syntheseModule/synthese-results/synthese-list/synthese-list.component.ts b/frontend/src/app/syntheseModule/synthese-results/synthese-list/synthese-list.component.ts
index 4cc0ebbf7b..732bba9b57 100644
--- a/frontend/src/app/syntheseModule/synthese-results/synthese-list/synthese-list.component.ts
+++ b/frontend/src/app/syntheseModule/synthese-results/synthese-list/synthese-list.component.ts
@@ -24,6 +24,7 @@ import { CruvedStoreService } from '@geonature_common/service/cruved-store.servi
 import { SyntheseInfoObsComponent } from '@geonature/shared/syntheseSharedModule/synthese-info-obs/synthese-info-obs.component';
 import { ConfigService } from '@geonature/services/config.service';
 import { FormArray, FormControl } from '@angular/forms';
+import { SyntheseStoreService } from '@geonature/syntheseModule/services/store.service';
 @Component({
   selector: 'pnx-synthese-list',
   templateUrl: 'synthese-list.component.html',
@@ -53,7 +54,8 @@ export class SyntheseListComponent implements OnInit, OnChanges, AfterContentChe
     public sanitizer: DomSanitizer,
     public ref: ChangeDetectorRef,
     public _cruvedStore: CruvedStoreService,
-    public config: ConfigService
+    public config: ConfigService,
+    private _syntheseStore: SyntheseStoreService
   ) {
     this.SYNTHESE_CONFIG = this.config.SYNTHESE;
   }
@@ -167,9 +169,11 @@ export class SyntheseListComponent implements OnInit, OnChanges, AfterContentChe
   }
 
   openDownloadModal() {
-    this.ngbModal.open(SyntheseModalDownloadComponent, {
+    const modalRef = this.ngbModal.open(SyntheseModalDownloadComponent, {
       size: 'lg',
     });
+    modalRef.componentInstance.tooManyObsForExport =
+      this._syntheseStore.idSyntheseList.length > this.config.SYNTHESE.NB_MAX_OBS_EXPORT;
   }
 
   getRowClass() {
diff --git a/frontend/src/app/syntheseModule/synthese.component.ts b/frontend/src/app/syntheseModule/synthese.component.ts
index e1b4108059..e954febb18 100644
--- a/frontend/src/app/syntheseModule/synthese.component.ts
+++ b/frontend/src/app/syntheseModule/synthese.component.ts
@@ -107,6 +107,8 @@ export class SyntheseComponent implements OnInit {
           });
           modalRef.componentInstance.queryString = this.searchService.buildQueryUrl(formParams);
           modalRef.componentInstance.tooManyObs = true;
+          modalRef.componentInstance.tooManyObsForExport =
+            this._syntheseStore.idSyntheseList.length > this.config.SYNTHESE.NB_MAX_OBS_EXPORT;
         }
 
         // Store geojson