diff --git a/htdocs/admin/emailcollector_card.php b/htdocs/admin/emailcollector_card.php
index 0c74b19b424..2f33b8445f9 100644
--- a/htdocs/admin/emailcollector_card.php
+++ b/htdocs/admin/emailcollector_card.php
@@ -466,6 +466,7 @@ if ($object->id > 0 && (empty($action) || ($action != 'edit' && $action != 'crea
 	print '<input type="hidden" name="id" value="'.$object->id.'">';
 
 	// Filters
+	print '<div class="div-table-responsive">';
 	print '<table class="border centpercent tableforfield">';
 	print '<tr class="liste_titre">';
 	print '<td>'.$langs->trans("Filters").'</td><td></td><td></td>';
@@ -499,7 +500,7 @@ if ($object->id > 0 && (empty($action) || ($action != 'edit' && $action != 'crea
 		'isnotanswer'=>array('label'=>'IsNotAnAnswer', 'data-noparam'=>1),
 		'isanswer'=>array('label'=>'IsAnAnswer', 'data-noparam'=>1)
 	);
-	print $form->selectarray('filtertype', $arrayoftypes, '', 1, 0, 0, '', 1, 0, 0, '', '', 0, '', 2);
+	print $form->selectarray('filtertype', $arrayoftypes, '', 1, 0, 0, '', 1, 0, 0, '', 'maxwidth500', 0, '', 2);
 
 	print "\n";
 	print '<script>';
@@ -544,10 +545,12 @@ if ($object->id > 0 && (empty($action) || ($action != 'edit' && $action != 'crea
 
 	print '</tr>';
 	print '</table>';
+	print '</div>';
 
 	print '<div class="clearboth"></div><br>';
 
 	// Operations
+	print '<div class="div-table-responsive">';
 	print '<table id="tablelines" class="noborder noshadow tableforfield">';
 	print '<tr class="liste_titre">';
 	print '<td>'.$langs->trans("EmailcollectorOperations").'</td><td></td><td></td><td></td>';
@@ -635,6 +638,7 @@ if ($object->id > 0 && (empty($action) || ($action != 'edit' && $action != 'crea
 
 	print '</tr>';
 	print '</table>';
+	print '</div>';
 
 	if (!empty($conf->use_javascript_ajax)) {
 	    $urltorefreshaftermove = DOL_URL_ROOT.'/admin/emailcollector_card.php?id='.$id;
diff --git a/htdocs/comm/action/card.php b/htdocs/comm/action/card.php
index dcb72cd2a18..c75410f3cbd 100644
--- a/htdocs/comm/action/card.php
+++ b/htdocs/comm/action/card.php
@@ -1579,9 +1579,11 @@ if ($id > 0)
 		}
 
 		// Priority
-		print '<tr><td class="titlefieldcreate nowrap">'.$langs->trans("Priority").'</td><td>';
-		print '<input type="text" name="priority" value="'.($object->priority ? $object->priority : '').'" size="5">';
-		print '</td></tr>';
+		if (! empty($conf->global->AGENDA_SUPPORT_PRIORITY_IN_EVENTS)) {
+			print '<tr><td class="titlefieldcreate nowrap">'.$langs->trans("Priority").'</td><td>';
+			print '<input type="text" name="priority" value="'.($object->priority ? $object->priority : '').'" size="5">';
+			print '</td></tr>';
+		}
 
 		// Object linked
 		if (!empty($object->fk_element) && !empty($object->elementtype))
diff --git a/htdocs/comm/action/list.php b/htdocs/comm/action/list.php
index d78346efe74..31274bee5fd 100644
--- a/htdocs/comm/action/list.php
+++ b/htdocs/comm/action/list.php
@@ -716,7 +716,7 @@ if ($resql)
 
 		// Label
 		if (!empty($arrayfields['a.label']['checked'])) {
-			print '<td class="tdoverflowmax200">';
+			print '<td class="tdoverflowmax200" title="'.dol_escape_htmltag($actionstatic->label).'">';
 			print $actionstatic->label;
 			print '</td>';
 		}
diff --git a/htdocs/core/class/CMailFile.class.php b/htdocs/core/class/CMailFile.class.php
index bca09cb967e..c005ba77f3c 100644
--- a/htdocs/core/class/CMailFile.class.php
+++ b/htdocs/core/class/CMailFile.class.php
@@ -32,7 +32,7 @@
 
 /**
  *	Class to send emails (with attachments or not)
- *  Usage: $mailfile = new CMailFile($subject,$sendto,$replyto,$message,$filepath,$mimetype,$filename,$cc,$ccc,$deliveryreceipt,$msgishtml,$errors_to,$css,$trackid,$moreinheader,$sendcontext);
+ *  Usage: $mailfile = new CMailFile($subject,$sendto,$replyto,$message,$filepath,$mimetype,$filename,$cc,$ccc,$deliveryreceipt,$msgishtml,$errors_to,$css,$trackid,$moreinheader,$sendcontext,$replyto);
  *         $mailfile->sendfile();
  */
 class CMailFile
@@ -195,7 +195,7 @@ class CMailFile
 		// On defini alternative_boundary
 		$this->alternative_boundary = 'mul_'.dol_hash(uniqid("dolibarr3"), 3); // Force md5 hash (does not contains special chars)
 
-		dol_syslog("CMailFile::CMailfile: sendmode=".$this->sendmode." charset=".$conf->file->character_set_client." from=$from, to=$to, addr_cc=$addr_cc, addr_bcc=$addr_bcc, errors_to=$errors_to, trackid=$trackid sendcontext=$sendcontext", LOG_DEBUG);
+		dol_syslog("CMailFile::CMailfile: sendmode=".$this->sendmode." charset=".$conf->file->character_set_client." from=$from, to=$to, addr_cc=$addr_cc, addr_bcc=$addr_bcc, errors_to=$errors_to, replyto=$replyto trackid=$trackid sendcontext=$sendcontext", LOG_DEBUG);
 		dol_syslog("CMailFile::CMailfile: subject=".$subject.", deliveryreceipt=".$deliveryreceipt.", msgishtml=".$msgishtml, LOG_DEBUG);
 
 		if (empty($subject))
@@ -358,7 +358,7 @@ class CMailFile
 			$smtps->setTO($this->getValidAddress($this->addr_to, 0, 1));
 			$smtps->setFrom($this->getValidAddress($this->addr_from, 0, 1));
 			$smtps->setTrackId($this->trackid);
-			$smtps->setReplyTo($this->getValidAddress($this->replyto, 0, 1));
+			$smtps->setReplyTo($this->getValidAddress($this->reply_to, 0, 1));
 
 			if (!empty($moreinheader)) $smtps->setMoreInHeader($moreinheader);
 
@@ -527,7 +527,7 @@ class CMailFile
 
 			if (! empty($this->addr_cc)) $this->message->setCc($this->getArrayAddress($this->addr_cc));
 			if (! empty($this->addr_bcc)) $this->message->setBcc($this->getArrayAddress($this->addr_bcc));
-			//if (! empty($errors_to)) $this->message->setErrorsTo($this->getArrayAddress($errors_to);
+			//if (! empty($this->errors_to)) $this->message->setErrorsTo($this->getArrayAddress($this->errors_to));
 			if (isset($this->deliveryreceipt) && $this->deliveryreceipt == 1) $this->message->setReadReceiptTo($this->getArrayAddress($this->addr_from));
 		} else {
 			// Send mail method not correctly defined
diff --git a/htdocs/install/mysql/migration/12.0.0-13.0.0.sql b/htdocs/install/mysql/migration/12.0.0-13.0.0.sql
index b73826a21ad..92f08f43e67 100644
--- a/htdocs/install/mysql/migration/12.0.0-13.0.0.sql
+++ b/htdocs/install/mysql/migration/12.0.0-13.0.0.sql
@@ -301,4 +301,8 @@ insert into llx_c_action_trigger (code,label,description,elementtype,rang) value
 ALTER TABLE llx_actioncomm_reminder ADD COLUMN entity integer NOT NULL DEFAULT 1;
 ALTER TABLE llx_actioncomm_reminder ADD COLUMN fk_actioncomm integer NOT NULL;
 ALTER TABLE llx_actioncomm_reminder ADD COLUMN fk_email_template integer;
-ALTER TABLE llx_actioncomm_reminder DROP INDEX uk_actioncomm_reminder_unique, ADD UNIQUE uk_actioncomm_reminder_unique (fk_user, typeremind, offsetvalue, offsetunit, fk_actioncomm);
\ No newline at end of file
+ALTER TABLE llx_actioncomm_reminder DROP INDEX uk_actioncomm_reminder_unique, ADD UNIQUE uk_actioncomm_reminder_unique (fk_user, typeremind, offsetvalue, offsetunit, fk_actioncomm);
+
+ALTER TABLE llx_inventorydet ADD UNIQUE uk_inventorydet(fk_inventory, fk_warehouse, fk_product, batch);
+
+
diff --git a/htdocs/install/mysql/tables/llx_inventorydet.key.sql b/htdocs/install/mysql/tables/llx_inventorydet.key.sql
index 44890608b7e..cfe82448fd6 100644
--- a/htdocs/install/mysql/tables/llx_inventorydet.key.sql
+++ b/htdocs/install/mysql/tables/llx_inventorydet.key.sql
@@ -20,3 +20,6 @@
 ALTER TABLE llx_inventorydet ADD INDEX idx_inventorydet_tms (tms);
 ALTER TABLE llx_inventorydet ADD INDEX idx_inventorydet_datec (datec);
 ALTER TABLE llx_inventorydet ADD INDEX idx_inventorydet_fk_inventory (fk_inventory);
+
+ALTER TABLE llx_inventorydet ADD UNIQUE uk_inventorydet(fk_inventory, fk_warehouse, fk_product, batch);
+
diff --git a/htdocs/install/mysql/tables/llx_inventorydet.sql b/htdocs/install/mysql/tables/llx_inventorydet.sql
index 161e34183a0..8c770895194 100644
--- a/htdocs/install/mysql/tables/llx_inventorydet.sql
+++ b/htdocs/install/mysql/tables/llx_inventorydet.sql
@@ -19,15 +19,15 @@
 
 CREATE TABLE llx_inventorydet 
 ( 
-rowid integer NOT NULL AUTO_INCREMENT PRIMARY KEY, 
-datec datetime DEFAULT NULL,
-tms timestamp, 
-fk_inventory integer DEFAULT 0, 
-fk_warehouse integer DEFAULT 0,
-fk_product integer DEFAULT 0,  
-batch varchar(128) DEFAULT NULL,	 -- Lot or serial number
-qty_stock double DEFAULT NULL,   -- The targeted value. can be filled during draft edition
-qty_view double DEFAULT NULL, 	   -- must be filled once regulation is done
-qty_regulated double DEFAULT NULL  -- must be filled once regulation is done
+	rowid integer NOT NULL AUTO_INCREMENT PRIMARY KEY, 
+	datec datetime DEFAULT NULL,
+	tms timestamp, 
+	fk_inventory integer DEFAULT 0, 
+	fk_warehouse integer DEFAULT 0,
+	fk_product integer DEFAULT 0,  
+	batch varchar(128) DEFAULT NULL,	 -- Lot or serial number
+	qty_stock double DEFAULT NULL,   -- The targeted value. can be filled during draft edition
+	qty_view double DEFAULT NULL, 	   -- must be filled once regulation is done
+	qty_regulated double DEFAULT NULL  -- must be filled once regulation is done
 ) 
 ENGINE=innodb;
diff --git a/htdocs/langs/en_US/stocks.lang b/htdocs/langs/en_US/stocks.lang
index a681304acf4..70bd81f45b2 100644
--- a/htdocs/langs/en_US/stocks.lang
+++ b/htdocs/langs/en_US/stocks.lang
@@ -238,5 +238,6 @@ StockAtDatePastDesc=You can view here the stock (real stock) at a given date in
 StockAtDateFutureDesc=You can view here the stock (virtual stock) at a given date in future
 CurrentStock=Current stock
 InventoryRealQtyHelp=Set value to 0 to reset qty<br>Keep field empty, or remove line, to keep unchanged
+UpdateByScaning=Update by scaning
 UpdateByScaningProductBarcode=Update by scan (product barcode)
 UpdateByScaningLot=Update by scan (lot|serial barcode)
diff --git a/htdocs/product/inventory/inventory.php b/htdocs/product/inventory/inventory.php
index d9a5e081496..d3fa04d4e11 100644
--- a/htdocs/product/inventory/inventory.php
+++ b/htdocs/product/inventory/inventory.php
@@ -132,7 +132,8 @@ if (empty($reshook))
 			$error++;
 			setEventMessages($langs->trans("ErrorFieldRequired", $langs->transnoentitiesnoconv("Product")), null, 'errors');
 		}
-		if (! $error) {
+
+		if (! $error && ! empty($conf->productbatch->enabled)) {
 			$tmpproduct = new Product($db);
 			$result = $tmpproduct->fetch($fk_product);
 
@@ -157,7 +158,11 @@ if (empty($reshook))
 
 			$result = $tmp->create($user);
 			if ($result < 0) {
-				dol_print_error($db, $tmp->error, $tmp->errors);
+				if ($db->lasterrno() == 'DB_ERROR_RECORD_ALREADY_EXISTS') {
+					setEventMessages($langs->trans("DuplicateRecord"), null, 'errors');
+				} else {
+					dol_print_error($db, $tmp->error, $tmp->errors);
+				}
 			}
 		}
 	}
@@ -336,16 +341,16 @@ if ($object->id > 0)
     		{
     			if ($permissiontoadd)
     			{
-    				//print '<a href="'.DOL_URL_ROOT.'/product/inventory/inventory.php?id='.$object->id.'&action=addline" class="butAction">'.$langs->trans("AddLine").'</a>';
-
+    				/*
     				if ($conf->barcode->enabled) {
     					print '<a href="#" class="butAction">'.$langs->trans("UpdateByScaningProductBarcode").'</a>';
     				}
     				if ($conf->productbatch->enabled) {
     					print '<a href="#" class="butAction">'.$langs->trans('UpdateByScaningLot').'</a>';
+    				}*/
+    				if ($conf->barcode->enabled || $conf->productbatch->enabled) {
+    					print '<a href="#" class="butAction">'.$langs->trans("UpdateByScaning").'</a>';
     				}
-
-    				//print '<a class="butAction" href="'.$_SERVER["PHP_SELF"].'?id='.$object->id.'&amp;action=savecurrent">'.$langs->trans("Save").'</a>'."\n";
     			} else {
     				print '<a class="butActionRefused classfortooltip" href="#" title="'.dol_escape_htmltag($langs->trans("NotEnoughPermissions")).'">'.$langs->trans('Save').'</a>'."\n";
     			}