diff --git a/htdocs/categories/class/api_categories.class.php b/htdocs/categories/class/api_categories.class.php
index c0673d37d0b..0038a790be7 100644
--- a/htdocs/categories/class/api_categories.class.php
+++ b/htdocs/categories/class/api_categories.class.php
@@ -278,8 +278,8 @@ class Categories extends DolibarrApi
 			throw new RestException(403, 'Access not allowed for login '.DolibarrApiAccess::$user->login);
 		}
 
-		if (!$this->category->delete(DolibarrApiAccess::$user)) {
-			throw new RestException(500, 'error when delete category');
+		if ($this->category->delete(DolibarrApiAccess::$user) <= 0) {
+			throw new RestException(500, 'Error when delete category : ' . $this->category->error);
 		}
 
 		return array(
diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index a4ddcecf418..2650e495ab8 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -3514,7 +3514,7 @@ class Form
 
 		if (isModEnabled('stock') && isset($objp->stock) && ($objp->fk_product_type == Product::TYPE_PRODUCT || getDolGlobalString('STOCK_SUPPORTS_SERVICES'))) {
 			if ($user->hasRight('stock', 'lire')) {
-				$opt .= ' - ' . $langs->trans("Stock") . ': ' . price(price2num($objp->stock, 'MS'));
+				$opt .= ' - ' . $langs->trans("Stock") . ': ' . price(price2num($objp->stock, 'MS'), 0, $langs, 0, 0);
 
 				if ($objp->stock > 0) {
 					$outval .= ' - <span class="product_line_stock_ok">';
diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 07dcbf87086..669aa6689d1 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -6612,10 +6612,11 @@ function price($amount, $form = 0, $outlangs = '', $trunc = 1, $rounding = -1, $
 	if (dol_strlen($decpart) > $nbdecimal) {
 		$nbdecimal = dol_strlen($decpart);
 	}
-	// Si on depasse max
-	$max_nbdecimal = (int) str_replace('...', '', getDolGlobalString('MAIN_MAX_DECIMALS_SHOWN'));
-	if ($trunc && $nbdecimal > $max_nbdecimal) {
-		$nbdecimal = $max_nbdecimal;
+
+	// If nbdecimal is higher than max to show
+	$nbdecimalmaxshown = (int) str_replace('...', '', getDolGlobalString('MAIN_MAX_DECIMALS_SHOWN'));
+	if ($trunc && $nbdecimal > $nbdecimalmaxshown) {
+		$nbdecimal = $nbdecimalmaxshown;
 		if (preg_match('/\.\.\./i', getDolGlobalString('MAIN_MAX_DECIMALS_SHOWN'))) {
 			// If output is truncated, we show ...
 			$end = '...';
diff --git a/htdocs/societe/class/api_contacts.class.php b/htdocs/societe/class/api_contacts.class.php
index 95e7de8d649..3499bf09b92 100644
--- a/htdocs/societe/class/api_contacts.class.php
+++ b/htdocs/societe/class/api_contacts.class.php
@@ -369,7 +369,7 @@ class Contacts extends DolibarrApi
 	 * Delete contact
 	 *
 	 * @param   int     $id Contact ID
-	 * @return  integer
+	 * @return  array[]
 	 */
 	public function delete($id)
 	{
@@ -385,7 +385,17 @@ class Contacts extends DolibarrApi
 			throw new RestException(403, 'Access not allowed for login '.DolibarrApiAccess::$user->login);
 		}
 		$this->contact->oldcopy = clone $this->contact;
-		return $this->contact->delete(DolibarrApiAccess::$user);
+
+		if ($this->contact->delete(DolibarrApiAccess::$user) <= 0) {
+			throw new RestException(500, 'Error when delete contact ' . $this->contact->error);
+		}
+
+		return array(
+			'success' => array(
+				'code' => 200,
+				'message' => 'Contact deleted'
+			)
+		);
 	}
 
 	/**