diff --git a/src/components/pages/inventory/movement/form/MovementForm.tsx b/src/components/pages/inventory/movement/form/MovementForm.tsx
index 62a23595..cd01cd96 100644
--- a/src/components/pages/inventory/movement/form/MovementForm.tsx
+++ b/src/components/pages/inventory/movement/form/MovementForm.tsx
@@ -189,12 +189,45 @@ const MovementForm = ({ type = 'add', initialValues }: MovementFormProps) => {
         return;
       }
       const documents: File[] = [];
+      const documentNameToIndex = new Map<string, number>();
+      let sequentialDocumentIndex = 0;
+
       const deliveriesPayload = values.deliveries.map((d) => {
-        let documentIndex = 0;
+        let documentIndex = -1;
 
         if (d.document && d.document instanceof File) {
-          documents.push(d.document);
-          documentIndex = documents.length - 1;
+          const fileName = d.document.name;
+
+          if (documentNameToIndex.has(fileName)) {
+            documentIndex = documentNameToIndex.get(fileName)!;
+          } else {
+            documents.push(d.document);
+            documentIndex = sequentialDocumentIndex;
+            documentNameToIndex.set(fileName, documentIndex);
+            sequentialDocumentIndex++;
+          }
+        } else if (d.document_path) {
+          const pathFileName =
+            d.document_path.split('/').pop() || d.document_path;
+
+          if (documentNameToIndex.has(pathFileName)) {
+            documentIndex = documentNameToIndex.get(pathFileName)!;
+          } else {
+            documentIndex = sequentialDocumentIndex;
+            documentNameToIndex.set(pathFileName, documentIndex);
+            sequentialDocumentIndex++;
+          }
+        } else if (d.document && !(d.document instanceof File)) {
+          const existingDocFileName =
+            d.document.path.split('/').pop() || d.document.path;
+
+          if (documentNameToIndex.has(existingDocFileName)) {
+            documentIndex = documentNameToIndex.get(existingDocFileName)!;
+          } else {
+            documentIndex = sequentialDocumentIndex;
+            documentNameToIndex.set(existingDocFileName, documentIndex);
+            sequentialDocumentIndex++;
+          }
         }
 
         return {