diff --git a/projects/admin/src/app/record/detail-view/document-detail-view/dialog-import/dialog-import.component.html b/projects/admin/src/app/record/detail-view/document-detail-view/dialog-import/dialog-import.component.html
index 7c8b6e3e5..4feacc4e6 100644
--- a/projects/admin/src/app/record/detail-view/document-detail-view/dialog-import/dialog-import.component.html
+++ b/projects/admin/src/app/record/detail-view/document-detail-view/dialog-import/dialog-import.component.html
@@ -18,25 +18,36 @@
   <h4 class="modal-title pull-left" translate>Import</h4>
 </div>
 <div class="modal-body">
-  @if (records.length < 2) {
-    <h5 translate>A document is available</h5>
-  } @else {
-    <h5 translate>Documents are available</h5>
+  @if (records.length > 0 || warning) {
+    <h5>{{ 'This document may already exist' | translate }}</h5>
   }
-  <ul class="list-unstyled mb-0">
-    @for (record of records; track record) {
-      <li>
-        <a [routerLink]="['/records', 'documents', 'detail', $any(record).metadata.pid]" (click)="close()">
-          @if ($any(record).metadata.ui_title_text_responsibility) {
-            {{ $any(record).metadata.ui_title_text_responsibility }}
-          } @else {
-            {{ 'Document' | translate }}
-          }
-        </a>
-      </li>
-    }
-  </ul>
-  <div class="font-weight-bold mt-3" translate>Do you want to import this document?</div>
+  @if (records.length > 0) {
+    <ul class="list-unstyled mb-0">
+      @for (record of records; track record) {
+        <li>
+          <a [routerLink]="['/records', 'documents', 'detail', $any(record).metadata.pid]" (click)="close()">
+            @if ($any(record).metadata.ui_title_text_responsibility) {
+              {{ $any(record).metadata.ui_title_text_responsibility }}
+            } @else {
+              {{ 'Document' | translate }}
+            }
+          </a>
+        </li>
+      }
+    </ul>
+  }
+  @if (warning) {
+    <div class="mt-3 row">
+      <div class="col-1">
+        <i class="fa fa-exclamation-circle fa-2x text-danger" aria-hidden="true"></i>
+      </div>
+      <div class="col-11">
+        <p class="mb-2 font-weight-bold" translate>Too many identifiers: not all identifiers have been verified.</p>
+        <p class="mb-2 font-weight-bold" translate>Please make sure that this document does not already exist before importing.</p>
+      </div>
+    </div>
+  }
+  <div class="font-weight-bold mt-3" translate>Do you really want to import this document?</div>
 </div>
 <div class="modal-footer">
   <button id="modal-cancel-button" type="button" class="btn btn-light" (click)="decline()" translate>Cancel</button>
diff --git a/projects/admin/src/app/record/detail-view/document-detail-view/dialog-import/dialog-import.component.ts b/projects/admin/src/app/record/detail-view/document-detail-view/dialog-import/dialog-import.component.ts
index a6ce58d08..ff911630a 100644
--- a/projects/admin/src/app/record/detail-view/document-detail-view/dialog-import/dialog-import.component.ts
+++ b/projects/admin/src/app/record/detail-view/document-detail-view/dialog-import/dialog-import.component.ts
@@ -27,6 +27,9 @@ export class DialogImportComponent {
   /** Available record */
   records: any[];
 
+  /** Show warning message */
+  warning: boolean = false;
+
   /** Observable for action */
   confirmation$: Subject<boolean> = new Subject<boolean>();
 
diff --git a/projects/admin/src/app/record/detail-view/document-detail-view/document-detail/document-detail.component.ts b/projects/admin/src/app/record/detail-view/document-detail-view/document-detail/document-detail.component.ts
index 03943a5fd..d06633567 100644
--- a/projects/admin/src/app/record/detail-view/document-detail-view/document-detail/document-detail.component.ts
+++ b/projects/admin/src/app/record/detail-view/document-detail-view/document-detail/document-detail.component.ts
@@ -154,16 +154,23 @@ export class DocumentDetailComponent extends DetailComponent {
       this.router.navigate(route, { queryParams: data });
     } else {
       // Find documents(s) with query params
-      const query = queryParams.join(' OR ');
+      let warning = false;
+      let query = queryParams.join(' OR ');
+      // If the query exceeds the size of 1024 characters, we truncate it.
+      if (query.length > 1024) {
+        query = query.substring(0, query.substring(0, 1024).lastIndexOf('OR') - 1);
+        warning = true;
+      }
       this.recordService.getRecords(
         'documents', query, 1, undefined, undefined, undefined, { accept: 'application/rero+json' }
       ).subscribe((response: Record) => {
-        if (this.recordService.totalHits(response.hits.total) === 0) {
+        if (this.recordService.totalHits(response.hits.total) === 0 && !warning) {
           this.router.navigate(route, { queryParams: data });
         } else {
           const config = {
             initialState: {
-              records: response.hits.hits
+              records: response.hits.hits,
+              warning
             }
           };
           const bsModalRef = this.bsModalService.show(DialogImportComponent, config);