diff --git a/htdocs/langs/en_US/stocks.lang b/htdocs/langs/en_US/stocks.lang
index 59f510a6bf2..b3f01b00cf7 100644
--- a/htdocs/langs/en_US/stocks.lang
+++ b/htdocs/langs/en_US/stocks.lang
@@ -253,4 +253,5 @@ LabelOfInventoryMovemement=Inventory %s
 ReOpen=Reopen
 ConfirmFinish=Do you confirm the closing of the inventory ? This will generate all stock movements to update your stock.
 ObjectNotFound=%s not found
-MakeMovementsAndClose=Generate movements and close
\ No newline at end of file
+MakeMovementsAndClose=Generate movements and close
+AutofillWithExpected=Auto-fill expected quantity with real quantity
\ No newline at end of file
diff --git a/htdocs/product/inventory/inventory.php b/htdocs/product/inventory/inventory.php
index 8efc5b75bb6..cb3231389b4 100644
--- a/htdocs/product/inventory/inventory.php
+++ b/htdocs/product/inventory/inventory.php
@@ -453,6 +453,20 @@ if ($object->id > 0) {
 		} else {
 			print '<a class="classfortooltip" href="#" title="'.dol_escape_htmltag($langs->trans("NotEnoughPermissions")).'">'.$langs->trans("Save").'</a>'."\n";
 		}
+		if ($permissiontoadd && $conf->use_javascript_ajax) {
+			print '&nbsp;';
+			print '<button type="button" class="butAction" id="fillwithexpected">'.$langs->trans('AutofillWithExpected').'</button>';
+			print '<script>';
+			print '$("#fillwithexpected").on("click",function fillWithExpected(){
+					$(".expectedqty").each(function(){
+						var object = $(this)[0];
+						var objecttofill = $("#"+object.id+"_input")[0];
+						objecttofill.value = object.innerText;
+						})
+						console.log("Values filled");
+					});';
+			print '</script>';
+		}
 		print '<br>';
 		print '<br>';
 		print '</center>';
@@ -601,13 +615,13 @@ if ($object->id > 0) {
 				print '</td>';
 			}
 
-			print '<td class="right">';
+			print '<td class="right expectedqty" id="id_'.$obj->rowid.'">';
 			print $obj->qty_stock;
 			print '</td>';
 			print '<td class="center">';
 			if ($object->status == $object::STATUS_VALIDATED) {
 				$qty_view = GETPOST("id_".$obj->rowid) ? GETPOST("id_".$obj->rowid) : $obj->qty_view;
-				print '<input type="text" class="maxwidth75 right" name="id_'.$obj->rowid.'" value="'.$qty_view.'">';
+				print '<input type="text" class="maxwidth75 right" name="id_'.$obj->rowid.'" id="id_'.$obj->rowid.'_input" value="'.$qty_view.'">';
 				print '</td>';
 				print '<td class="right">';
 				print '<a class="reposition" href="'.DOL_URL_ROOT.'/product/inventory/inventory.php?id='.$object->id.'&lineid='.$obj->rowid.'&action=deleteline&token='.newToken().'">'.img_delete().'</a>';