diff --git a/htdocs/comm/propal/list.php b/htdocs/comm/propal/list.php
index b6977940411..e0eb8a23e3e 100644
--- a/htdocs/comm/propal/list.php
+++ b/htdocs/comm/propal/list.php
@@ -349,9 +349,9 @@ if ($action == 'validate' && $permissiontovalidate) {
 		$db->begin();
 		$error = 0;
 		foreach ($toselect as $checked) {
-			if ($tmpproposal->fetch($checked)) {
-				if ($tmpproposal->statut == 0) {
-					if ($tmpproposal->valid($user)) {
+			if ($tmpproposal->fetch($checked) > 0) {
+				if ($tmpproposal->statut == $tmpproposal::STATUS_DRAFT) {
+					if ($tmpproposal->valid($user) > 0) {
 						setEventMessage($langs->trans('hasBeenValidated', $tmpproposal->ref), 'mesgs');
 					} else {
 						setEventMessage($langs->trans('CantBeValidated'), 'errors');
@@ -363,7 +363,7 @@ if ($action == 'validate' && $permissiontovalidate) {
 					$error++;
 				}
 			} else {
-				dol_print_error($db);
+				setEventMessages($tmpproposal->error, $tmpproposal->errors, 'errors');
 				$error++;
 			}
 		}
@@ -381,13 +381,13 @@ if ($action == "sign" && $permissiontoclose) {
 		$db->begin();
 		$error = 0;
 		foreach ($toselect as $checked) {
-			if ($tmpproposal->fetch($checked)) {
+			if ($tmpproposal->fetch($checked) > 0) {
 				if ($tmpproposal->statut == $tmpproposal::STATUS_VALIDATED) {
 					$tmpproposal->statut = $tmpproposal::STATUS_SIGNED;
-					if ($tmpproposal->closeProposal($user, $tmpproposal::STATUS_SIGNED)) {
+					if ($tmpproposal->closeProposal($user, $tmpproposal::STATUS_SIGNED) >= 0) {
 						setEventMessage($tmpproposal->ref." ".$langs->trans('Signed'), 'mesgs');
 					} else {
-						dol_print_error($db);
+						setEventMessages($tmpproposal->error, $tmpproposal->errors, 'errors');
 						$error++;
 					}
 				} else {
@@ -395,7 +395,7 @@ if ($action == "sign" && $permissiontoclose) {
 					$error++;
 				}
 			} else {
-				dol_print_error($db);
+				setEventMessages($tmpproposal->error, $tmpproposal->errors, 'errors');
 				$error++;
 			}
 		}
@@ -406,27 +406,28 @@ if ($action == "sign" && $permissiontoclose) {
 		}
 	}
 }
+
 if ($action == "nosign" && $permissiontoclose) {
 	if (GETPOST('confirm') == 'yes') {
 		$tmpproposal = new Propal($db);
 		$db->begin();
 		$error = 0;
 		foreach ($toselect as $checked) {
-			if ($tmpproposal->fetch($checked)) {
+			if ($tmpproposal->fetch($checked) > 0) {
 				if ($tmpproposal->statut == $tmpproposal::STATUS_VALIDATED) {
 					$tmpproposal->statut = $tmpproposal::STATUS_NOTSIGNED;
-					if ($tmpproposal->closeProposal($user, $tmpproposal::STATUS_NOTSIGNED)) {
+					if ($tmpproposal->closeProposal($user, $tmpproposal::STATUS_NOTSIGNED) > 0) {
 						setEventMessage($tmpproposal->ref." ".$langs->trans('NoSigned'), 'mesgs');
 					} else {
-						dol_print_error($db);
+						setEventMessages($tmpproposal->error, $tmpproposal->errors, 'errors');
 						$error++;
 					}
 				} else {
-					setEventMessage($tmpproposal->ref." ".$langs->trans('CantBeClosed'), 'errors');
+					setEventMessage($tmpproposal->ref." ".$langs->trans('CantBeNoSign'), 'errors');
 					$error++;
 				}
 			} else {
-				dol_print_error($db);
+				setEventMessages($tmpproposal->error, $tmpproposal->errors, 'errors');
 				$error++;
 			}
 		}
diff --git a/htdocs/langs/en_US/projects.lang b/htdocs/langs/en_US/projects.lang
index 9d3a83c7a61..39beacc2f28 100644
--- a/htdocs/langs/en_US/projects.lang
+++ b/htdocs/langs/en_US/projects.lang
@@ -285,3 +285,4 @@ SelectLinesOfTimeSpentToInvoice=Select lines of time spent that are unbilled, th
 ProjectTasksWithoutTimeSpent=Project tasks without time spent
 FormForNewLeadDesc=Thanks to fill the following form to contact us. You can also send us an email directly to <b>%s</b>.
 StartDateCannotBeAfterEndDate=End date cannot be before start date
+ErrorPROJECTLEADERRoleMissingRestoreIt=The "PROJECTLEADER" role is missing or has been de-activited, please restore in the dictionary of contact types
diff --git a/htdocs/langs/en_US/propal.lang b/htdocs/langs/en_US/propal.lang
index db7b559a8a7..3001b5d6314 100644
--- a/htdocs/langs/en_US/propal.lang
+++ b/htdocs/langs/en_US/propal.lang
@@ -85,6 +85,22 @@ ProposalCustomerSignature=Written acceptance, company stamp, date and signature
 ProposalsStatisticsSuppliers=Vendor proposals statistics
 CaseFollowedBy=Case followed by
 SignedOnly=Signed only
+NoSign=Set not signed
+NoSigned=set not signed
+CantBeNoSign=cannot be set not signed
+ConfirmMassNoSignature=Bulk Not signed confirmation
+ConfirmMassNoSignatureQuestion=Are you sure you want to set not signed the selected records ?
+IsNotADraft=is not a draft
+PassedInOpenStatus=has been validated
+CantBeSign=cannot be signed
+Sign=Sign
+Signed=signed
+CantBeSign=cannot be signed
+CantBeValidated=cannot be validated
+ConfirmMassValidation=Bulk Validate confirmation
+ConfirmMassSignature=Bulk Signature confirmation
+ConfirmMassValidationQuestion=Are you sure you want to validate the selected records ?
+ConfirmMassSignatureQuestion=Are you sure you want to sign the selected records ?
 IdProposal=Proposal ID
 IdProduct=Product ID
 PrParentLine=Proposal Parent Line
diff --git a/htdocs/product/class/product.class.php b/htdocs/product/class/product.class.php
index 74a1b515531..bd3cf69c86a 100644
--- a/htdocs/product/class/product.class.php
+++ b/htdocs/product/class/product.class.php
@@ -2212,7 +2212,8 @@ class Product extends CommonObject
 				$this->db->commit();
 			} else {
 				$this->db->rollback();
-				dol_print_error($this->db);
+				$this->error = $this->db->lasterror();
+				return -1;
 			}
 		}
 
diff --git a/htdocs/product/price.php b/htdocs/product/price.php
index 45ecbd9bafa..42066170f17 100644
--- a/htdocs/product/price.php
+++ b/htdocs/product/price.php
@@ -191,12 +191,17 @@ if (empty($reshook)) {
 			setEventMessages($object->error, $object->errors, 'errors');
 		}
 
-		if ($error) {
+		if (!$error) {
 			// Force the update of the price of the product to 0 if error
 
 			//$localtaxarray=array('0'=>$localtax1_type,'1'=>$localtax1,'2'=>$localtax2_type,'3'=>$localtax2);
 			$localtaxarray = array(); // We do not store localtaxes into product, we will use instead the "vat code" to retrieve them.
-			$object->updatePrice(0, $object->price_base_type, $user, $tva_tx, '', 0, $npr, 0, 0, $localtaxarray, $vatratecode);
+			$ret = $object->updatePrice(0, $object->price_base_type, $user, $tva_tx, '', 0, $npr, 0, 0, $localtaxarray, $vatratecode);
+
+			if ($ret < 0) {
+				$error++;
+				setEventMessages($object->error, $object->errors, 'errors');
+			}
 		}
 
 		if (!$error) {
@@ -463,13 +468,21 @@ if (empty($reshook)) {
 	if ($action == 'activate_price_by_qty') {
 		// Activating product price by quantity add a new price line with price_by_qty set to 1
 		$level = GETPOST('level', 'int');
-		$object->updatePrice(0, $object->price_base_type, $user, $object->tva_tx, 0, $level, $object->tva_npr, 1);
+		$ret = $object->updatePrice(0, $object->price_base_type, $user, $object->tva_tx, 0, $level, $object->tva_npr, 1);
+
+		if ($ret < 0) {
+			setEventMessages($object->error, $object->errors, 'errors');
+		}
 	}
 	// Unset Price by quantity
 	if ($action == 'disable_price_by_qty') {
 		// Disabling product price by quantity add a new price line with price_by_qty set to 0
 		$level = GETPOST('level', 'int');
-		$object->updatePrice(0, $object->price_base_type, $user, $object->tva_tx, 0, $level, $object->tva_npr, 0);
+		$ret = $object->updatePrice(0, $object->price_base_type, $user, $object->tva_tx, 0, $level, $object->tva_npr, 0);
+
+		if ($ret < 0) {
+			setEventMessages($object->error, $object->errors, 'errors');
+		}
 	}
 
 	if ($action == 'edit_price_by_qty') { // Edition d'un prix par quantité
@@ -1603,13 +1616,17 @@ if ((empty($conf->global->PRODUIT_CUSTOMER_PRICES) || $action == 'showlog_defaul
 			// On l'ajoute donc pour remettre a niveau (pb vieilles versions)
 			// We emulate the change of the price from interface with the same value than the one into table llx_product
 			if (!empty($conf->global->PRODUIT_MULTIPRICES)) {
-				$object->updatePrice(($object->multiprices_base_type[1] == 'TTC' ? $object->multiprices_ttc[1] : $object->multiprices[1]), $object->multiprices_base_type[1], $user, (empty($object->multiprices_tva_tx[1]) ? 0 : $object->multiprices_tva_tx[1]), ($object->multiprices_base_type[1] == 'TTC' ? $object->multiprices_min_ttc[1] : $object->multiprices_min[1]), 1);
+				$ret = $object->updatePrice(($object->multiprices_base_type[1] == 'TTC' ? $object->multiprices_ttc[1] : $object->multiprices[1]), $object->multiprices_base_type[1], $user, (empty($object->multiprices_tva_tx[1]) ? 0 : $object->multiprices_tva_tx[1]), ($object->multiprices_base_type[1] == 'TTC' ? $object->multiprices_min_ttc[1] : $object->multiprices_min[1]), 1);
 			} else {
-				$object->updatePrice(($object->price_base_type == 'TTC' ? $object->price_ttc : $object->price), $object->price_base_type, $user, $object->tva_tx, ($object->price_base_type == 'TTC' ? $object->price_min_ttc : $object->price_min));
+				$ret = $object->updatePrice(($object->price_base_type == 'TTC' ? $object->price_ttc : $object->price), $object->price_base_type, $user, $object->tva_tx, ($object->price_base_type == 'TTC' ? $object->price_min_ttc : $object->price_min));
 			}
 
-			$result = $db->query($sql);
-			$num = $db->num_rows($result);
+			if ($ret < 0) {
+				dol_print_error($db, $object->error, $object->errors);
+			} else {
+				$result = $db->query($sql);
+				$num = $db->num_rows($result);
+			}
 		}
 
 		if ($num > 0) {
diff --git a/htdocs/projet/card.php b/htdocs/projet/card.php
index 433a933c75b..c5fc08a6402 100644
--- a/htdocs/projet/card.php
+++ b/htdocs/projet/card.php
@@ -197,9 +197,14 @@ if (empty($reshook)) {
 			$result = $object->create($user);
 			if (!$error && $result > 0) {
 				// Add myself as project leader
-				$typeofcontact = 'PROJECTLEADER';	// TODO If use rename this code in dictionary, the add_contact will generate an error.
+				$typeofcontact = 'PROJECTLEADER';
 				$result = $object->add_contact($user->id, $typeofcontact, 'internal');
-				if ($result < 0) {
+
+				// -3 means type not found (PROJECTLEADER renamed, de-activated or deleted), so don't prevent creation if it has been the case
+				if ($result == -3) {
+					setEventMessage('ErrorPROJECTLEADERRoleMissingRestoreIt', 'errors');
+					$error++;
+				} elseif ($result < 0) {
 					$langs->load("errors");
 					setEventMessages($object->error, $object->errors, 'errors');
 					$error++;
diff --git a/htdocs/reception/class/reception.class.php b/htdocs/reception/class/reception.class.php
index 28fb783e2c9..b61b4a926ea 100644
--- a/htdocs/reception/class/reception.class.php
+++ b/htdocs/reception/class/reception.class.php
@@ -565,7 +565,7 @@ class Reception extends CommonObject
 
 			// Loop on each product line to add a stock movement
 			// TODO in future, reception lines may not be linked to order line
-			$sql = "SELECT cd.fk_product, cd.subprice,";
+			$sql = "SELECT cd.fk_product, cd.subprice, cd.remise_percent,";
 			$sql .= " ed.rowid, ed.qty, ed.fk_entrepot,";
 			$sql .= " ed.eatby, ed.sellby, ed.batch,";
 			$sql .= " ed.cost_price";
@@ -592,6 +592,12 @@ class Reception extends CommonObject
 					$mouvS = new MouvementStock($this->db);
 					$mouvS->origin = &$this;
 
+					// get unit price with discount
+					$up_ht_disc = $obj->subprice;
+					if (!empty($obj->remise_percent) && empty($conf->global->STOCK_EXCLUDE_DISCOUNT_FOR_PMP)) {
+						$up_ht_disc = price2num($up_ht_disc * (100 - $obj->remise_percent) / 100, 'MU');
+					}
+
 					if (empty($obj->batch)) {
 						// line without batch detail
 
@@ -600,8 +606,9 @@ class Reception extends CommonObject
 						if (!empty($conf->global->STOCK_CALCULATE_ON_RECEPTION || $conf->global->STOCK_CALCULATE_ON_RECEPTION_CLOSE)) {
 							$result = $mouvS->reception($user, $obj->fk_product, $obj->fk_entrepot, $qty, $obj->cost_price, $langs->trans("ReceptionValidatedInDolibarr", $numref), '', '', '', '', 0, $inventorycode);
 						} else {
-							$result = $mouvS->reception($user, $obj->fk_product, $obj->fk_entrepot, $qty, $obj->subprice, $langs->trans("ReceptionValidatedInDolibarr", $numref), '', '', '', '', 0, $inventorycode);
+							$result = $mouvS->reception($user, $obj->fk_product, $obj->fk_entrepot, $qty, $up_ht_disc, $langs->trans("ReceptionValidatedInDolibarr", $numref), '', '', '', '', 0, $inventorycode);
 						}
+
 						if ($result < 0) {
 							$error++;
 							$this->errors[] = $mouvS->error;
@@ -617,8 +624,9 @@ class Reception extends CommonObject
 						if (!empty($conf->global->STOCK_CALCULATE_ON_RECEPTION || $conf->global->STOCK_CALCULATE_ON_RECEPTION_CLOSE)) {
 							$result = $mouvS->reception($user, $obj->fk_product, $obj->fk_entrepot, $qty, $obj->cost_price, $langs->trans("ReceptionValidatedInDolibarr", $numref), $this->db->jdate($obj->eatby), $this->db->jdate($obj->sellby), $obj->batch, '', 0, $inventorycode);
 						} else {
-							$result = $mouvS->reception($user, $obj->fk_product, $obj->fk_entrepot, $qty, $obj->subprice, $langs->trans("ReceptionValidatedInDolibarr", $numref), $this->db->jdate($obj->eatby), $this->db->jdate($obj->sellby), $obj->batch, '', 0, $inventorycode);
+							$result = $mouvS->reception($user, $obj->fk_product, $obj->fk_entrepot, $qty, $up_ht_disc, $langs->trans("ReceptionValidatedInDolibarr", $numref), $this->db->jdate($obj->eatby), $this->db->jdate($obj->sellby), $obj->batch, '', 0, $inventorycode);
 						}
+
 						if ($result < 0) {
 							$error++;
 							$this->errors[] = $mouvS->error;
diff --git a/htdocs/variants/class/ProductCombination.class.php b/htdocs/variants/class/ProductCombination.class.php
index bb6372fd5eb..986d3c3e7e8 100644
--- a/htdocs/variants/class/ProductCombination.class.php
+++ b/htdocs/variants/class/ProductCombination.class.php
@@ -542,7 +542,14 @@ class ProductCombination
 							$new_price += $variation_price;
 						}
 
-						$child->updatePrice($new_price, $new_type, $user, $new_vat, $new_min_price, $i, $new_npr, $new_psq, 0, array(), $parent->default_vat_code);
+						$ret = $child->updatePrice($new_price, $new_type, $user, $new_vat, $new_min_price, $i, $new_npr, $new_psq, 0, array(), $parent->default_vat_code);
+
+						if ($ret < 0) {
+							$this->db->rollback();
+							$this->error = $child->error;
+							$this->errors = $child->errors;
+							return $ret;
+						}
 					}
 				}
 			} else {
@@ -564,7 +571,14 @@ class ProductCombination
 					$new_price += $this->variation_price;
 				}
 
-				$child->updatePrice($new_price, $new_type, $user, $new_vat, $new_min_price, 1, $new_npr, $new_psq);
+				$ret = $child->updatePrice($new_price, $new_type, $user, $new_vat, $new_min_price, 1, $new_npr, $new_psq);
+
+				if ($ret < 0) {
+					$this->db->rollback();
+					$this->error = $child->error;
+					$this->errors = $child->errors;
+					return $ret;
+				}
 			}
 
 			$this->db->commit();
@@ -573,6 +587,8 @@ class ProductCombination
 		}
 
 		$this->db->rollback();
+		$this->error = $child->error;
+		$this->errors = $child->errors;
 		return -1;
 	}
 
diff --git a/htdocs/viewimage.php b/htdocs/viewimage.php
index 7e9a6e39db7..f297fed62b4 100644
--- a/htdocs/viewimage.php
+++ b/htdocs/viewimage.php
@@ -239,6 +239,13 @@ if (empty($modulepart)) {
 	accessforbidden('Bad value for parameter modulepart', 0, 0, 1);
 }
 
+// When logged in a different entity, medias cannot be accessed because $conf->$module->multidir_output
+// is not set on the requested entity, but they are public documents, so reset entity
+if ($modulepart === 'medias' && $entity != $conf->entity) {
+	$conf->entity = $entity;
+	$conf->setValues($db);
+}
+
 $check_access = dol_check_secure_access_document($modulepart, $original_file, $entity, $user, $refname);
 $accessallowed              = $check_access['accessallowed'];
 $sqlprotectagainstexternals = $check_access['sqlprotectagainstexternals'];