diff --git a/htdocs/fourn/commande/card.php b/htdocs/fourn/commande/card.php
index 4e648b3271122..d53802c4b428b 100644
--- a/htdocs/fourn/commande/card.php
+++ b/htdocs/fourn/commande/card.php
@@ -65,6 +65,10 @@
 	require_once DOL_DOCUMENT_ROOT.'/variants/class/ProductCombination.class.php';
 }
 
+if (isModEnabled('stock')) {
+	require_once DOL_DOCUMENT_ROOT.'/fourn/class/fournisseur.commande.dispatch.class.php';
+	require_once DOL_DOCUMENT_ROOT.'/product/stock/class/mouvementstock.class.php';
+}
 
 /**
  * @var Conf $conf
@@ -83,21 +87,22 @@
 
 
 // Get Parameters
-$id = GETPOSTINT('id');
-$ref = GETPOST('ref', 'alpha');
 $action = GETPOST('action', 'alpha');
 $confirm = GETPOST('confirm', 'alpha');
 $contextpage = GETPOST('contextpage', 'aZ') ? GETPOST('contextpage', 'aZ') : 'purchaseordercard'; // To manage different context of search
+$cancel    = GETPOST('cancel', 'alpha');
 $backtopage = GETPOST('backtopage', 'alpha');
 $backtopageforcancel = GETPOST('backtopageforcancel', 'alpha');
 
+$id = GETPOSTINT('id');
+$ref = GETPOST('ref', 'alpha');
 $socid     = GETPOSTINT('socid');
 $projectid = GETPOSTINT('projectid');
-$cancel    = GETPOST('cancel', 'alpha');
 $lineid    = GETPOSTINT('lineid');
 $origin    = GETPOST('origin', 'alpha');
 $originid  = (GETPOSTINT('originid') ? GETPOSTINT('originid') : GETPOSTINT('origin_id')); // For backward compatibility
 $rank      = (GETPOSTINT('rank') > 0) ? GETPOSTINT('rank') : -1;
+$stockDelete = GETPOST('stockDelete', 'int');
 
 // PDF
 $hidedetails = (GETPOSTINT('hidedetails') ? GETPOSTINT('hidedetails') : (getDolGlobalString('MAIN_GENERATE_DOCUMENTS_HIDE_DETAILS') ? 1 : 0));
@@ -1128,12 +1133,63 @@
 
 
 	if ($action == 'confirm_delete' && $confirm == 'yes' && $usercandelete) {
-		$result = $object->delete($user);
-		if ($result > 0) {
-			header("Location: ".DOL_URL_ROOT.'/fourn/commande/list.php?restore_lastsearch_values=1');
-			exit;
+		// Delete existing dispatched lines
+		$errOnDelete = 0;
+		
+		$db->begin();
+		
+		if ($stockDelete) {
+			$dispatchedLines = $object->getDispachedLines();
+			if (!empty($dispatchedLines)) {
+				foreach ($dispatchedLines as $dispatchedLine) {
+					$supplierorderdispatch = new CommandeFournisseurDispatch($db);
+					$result = $supplierorderdispatch->fetch($dispatchedLine['id']);
+					if ($result > 0) {
+						$qty = $supplierorderdispatch->qty;
+						$entrepot = $supplierorderdispatch->fk_entrepot;
+						$product = $supplierorderdispatch->fk_product;
+						$price = price2num(GETPOST('price', 'alpha'), 'MU');
+						$comment = $langs->trans('SupplierOrderDeletion', $object->ref);
+						$eatby = $supplierorderdispatch->eatby;
+						$sellby = $supplierorderdispatch->sellby;
+						$batch = $supplierorderdispatch->batch;
+						$result = $supplierorderdispatch->delete($user);
+					}
+					if ($result < 0) {
+						$errorsOnDelete = $object->errors;
+						$errOnDelete++;
+					} else {
+						// If module stock is enabled and the stock increase is done on purchase order dispatching
+						if ($entrepot > 0 && !empty($conf->stock->enabled) && !empty($conf->global->STOCK_CALCULATE_ON_SUPPLIER_DISPATCH_ORDER) && empty($supplierorderdispatch->fk_reception)) {
+							$mouv = new MouvementStock($db);
+							if ($product > 0) {
+								$mouv->origin = &$object;
+								$mouv->setOrigin($object->element, $object->id);
+								$result = $mouv->livraison($user, $product, $entrepot, $qty, $price, $comment, '', $eatby, $sellby, $batch);
+								if ($result < 0) {
+									$errorsOnDelete = $mouv->errors;
+									$errOnDelete++;
+								}
+							}
+						}
+					}
+				}
+			}
+		}
+		
+		if (empty($errOnDelete)) {
+			$result = $object->delete($user);
+			if ($result > 0) {
+				$db->commit();
+				header("Location: " . DOL_URL_ROOT . '/fourn/commande/list.php?restore_lastsearch_values=1');
+				exit;
+			} else {
+				$db->rollback();
+				setEventMessages($object->error, $object->errors, 'errors');
+			}
 		} else {
-			setEventMessages($object->error, $object->errors, 'errors');
+			$db->rollback();
+			setEventMessages('', $errorsOnDelete, 'errors');
 		}
 	}
 
@@ -1902,7 +1958,34 @@
 
 	// Confirmation de la suppression de la commande
 	if ($action == 'delete') {
-		$formconfirm = $form->formconfirm($_SERVER["PHP_SELF"].'?id='.$object->id, $langs->trans('DeleteOrder'), $langs->trans('ConfirmDeleteOrder'), 'confirm_delete', '', 0, 2);
+		$arrayAjouts = array();
+		$heightModal = 0;
+		$widthModal = 500;
+		if (!empty($object->getDispachedLines())) {
+			$arrayAjouts = array(
+				array(
+					'type' => 'other',
+					'value' => img_warning() . " " . $langs->trans('ExistingDipatchLines')
+				),
+				array('type' => 'separator'),
+				array(
+					'type' => 'select',
+					'id' => 'stockDeleteSelect',
+					'name' => 'stockDelete',
+					'label' => $langs->trans('ConfirmDeleteDispatchedLines'),
+					'values' => array(1 => $langs->trans('Yes'), 0 => $langs->trans('No')),
+					'select_show_empty' => false
+				),
+				array(
+					'type' => 'other',
+					'value' => img_warning() . " " . $langs->trans('WarningDispatchedLinesWillNotBeAccessibles')
+				),
+				array('type' => 'separator'),
+			);
+			$heightModal = 300;
+			$widthModal = "70%";
+		}
+		$formconfirm = $form->formconfirm($_SERVER["PHP_SELF"] . '?id=' . $object->id, $langs->trans('DeleteOrder'), $langs->trans('ConfirmDeleteOrder'), 'confirm_delete', $arrayAjouts, 0, 2, $heightModal, $widthModal);
 	}
 
 	// Clone confirmation
diff --git a/htdocs/langs/en_US/orders.lang b/htdocs/langs/en_US/orders.lang
index 33ec8c22c7d62..692bd2c77140b 100644
--- a/htdocs/langs/en_US/orders.lang
+++ b/htdocs/langs/en_US/orders.lang
@@ -206,4 +206,8 @@ StatusSupplierOrderReceivedPartially=Partially received
 StatusSupplierOrderReceivedAll=All products received
 NeedAtLeastOneInvoice = There has to be at least one Invoice
 LineAlreadyDispatched = The order line is already received.
+ExistingDipatchLines = There are dispatched lines for this order. 
+WarningDispatchedLinesWillNotBeAccessibles = You will be unable to update/remove these dispatched lines if you decide to not delete them.
+ConfirmDeleteDispatchedLines = Delete dispatched lines ? 
+SupplierOrderDeletion = Supplier order %s Deletion
 OrderStatusMakeOperationForbidden = Order status forbidden for this operation.