diff --git a/packages/dnb-eufemia/src/extensions/forms/Field/Upload/UploadDocs.ts b/packages/dnb-eufemia/src/extensions/forms/Field/Upload/UploadDocs.ts
index 0fdfe4b5949..84fb5c9dda2 100644
--- a/packages/dnb-eufemia/src/extensions/forms/Field/Upload/UploadDocs.ts
+++ b/packages/dnb-eufemia/src/extensions/forms/Field/Upload/UploadDocs.ts
@@ -5,6 +5,11 @@ import {
 import { PropertiesTableProps } from '../../../../shared/types'
 
 export const UploadFieldProperties: PropertiesTableProps = {
+  asyncFileHandler: {
+    doc: 'Asynchronous handler function that takes newly added files (`newFiles: UploadValue`) as a parameter and returns a promise containing the processed files (`Promise<UploadValue>`).',
+    type: 'function',
+    status: 'optional',
+  },
   ...UploadProperties,
   title: undefined,
   text: undefined,