diff --git a/ChangeLog b/ChangeLog
index 3bae74a477a..46951fd1344 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -22,6 +22,7 @@ For users:
 - New: Can export into Excel 2007 format.
 - New: Add hidden option CASHDESK_FORCE_STOCK_ON_BILL
 - New: Can search on part of barcode into POS module.
+- Fix: Can use POS module with several concurrent users.
 
 For developers:
 - New: Add webservice to get or create a product, service.
diff --git a/htdocs/compta/deplacement/class/deplacement.class.php b/htdocs/compta/deplacement/class/deplacement.class.php
index f7182869870..fb4c34b86e5 100644
--- a/htdocs/compta/deplacement/class/deplacement.class.php
+++ b/htdocs/compta/deplacement/class/deplacement.class.php
@@ -172,6 +172,7 @@ class Deplacement extends CommonObject
 		$sql .= " , dated = '".$this->db->idate($this->date)."'";
 		$sql .= " , type = '".$this->type."'";
 		$sql .= " , fk_user = ".$this->fk_user;
+		$sql .= " , fk_user_modif = ".$user->id;
 		$sql .= " , fk_soc = ".($this->socid > 0?$this->socid:'null');
 		$sql .= " , note = ".($this->note?"'".$this->db->escape($this->note)."'":"null");
 		$sql .= " , note_public = ".($this->note_public?"'".$this->db->escape($this->note_public)."'":"null");
@@ -355,6 +356,49 @@ class Deplacement extends CommonObject
 
         return $ret;
 	}
+	
+	/*
+	 *    \brief      Information sur l'objet
+	 *    \param      id      id du deplacement dont il faut afficher les infos
+	 */
+	function info($id)
+	{
+		$sql = 'SELECT c.rowid, c.datec, c.fk_user_author, c.fk_user_modif,';
+		$sql.= ' c.tms';
+		$sql.= ' FROM '.MAIN_DB_PREFIX.'deplacement as c';
+		$sql.= ' WHERE c.rowid = '.$id;
+
+		dol_syslog(get_class($this).'::info sql='.$sql);
+		$result = $this->db->query($sql);
+
+		if ($result)
+		{
+			if ($this->db->num_rows($result))
+			{
+				$obj = $this->db->fetch_object($result);
+				$this->id = $obj->rowid;
+				if ($obj->fk_user_author)
+				{
+					$cuser = new User($this->db);
+					$cuser->fetch($obj->fk_user_author);
+					$this->user_creation = $cuser;
+				}
+				if ($obj->fk_user_modif)
+				{
+					$muser = new User($this->db);
+					$muser->fetch($obj->fk_user_modif);
+					$this->user_modification = $muser;
+				}
+				$this->date_creation     = $this->db->jdate($obj->datec);
+				$this->date_modification = $this->db->jdate($obj->tms);
+			}
+			$this->db->free($result);
+		}
+		else
+		{
+			dol_print_error($this->db);
+		}
+	}
 
 }
 
diff --git a/htdocs/install/mysql/migration/3.1.0-3.2.0.sql b/htdocs/install/mysql/migration/3.1.0-3.2.0.sql
index 653a2203341..60bf0d26d74 100755
--- a/htdocs/install/mysql/migration/3.1.0-3.2.0.sql
+++ b/htdocs/install/mysql/migration/3.1.0-3.2.0.sql
@@ -65,3 +65,5 @@ ALTER TABLE llx_product_fournisseur_price ADD CONSTRAINT fk_product_fournisseur_
 
 ALTER TABLE llx_product_fournisseur_price DROP FOREIGN KEY fk_product_fournisseur_price_fk_product_fournisseur;
 
+DROP TABLE IF EXISTS llx_pos_tmp;
+