diff --git a/db/routines/vn/procedures/collection_assign.sql b/db/routines/vn/procedures/collection_assign.sql
index fc9f9a711..84067e7d8 100644
--- a/db/routines/vn/procedures/collection_assign.sql
+++ b/db/routines/vn/procedures/collection_assign.sql
@@ -13,12 +13,39 @@ BEGIN
  * @param vCollectionFk Id de colección
  */
 	DECLARE vHasTooMuchCollections BOOL;
+	DECLARE vItemPackingTypeFk VARCHAR(1);
+	DECLARE vWarehouseFk INT;
+	DECLARE vLockName VARCHAR(215);
+	DECLARE vLockTime INT DEFAULT 30;
+	DECLARE vErrorNumber INT;
+	DECLARE vErrorMsg TEXT;
+
+	DECLARE EXIT HANDLER FOR SQLEXCEPTION
+	BEGIN
+		GET DIAGNOSTICS CONDITION 1
+			vErrorNumber = MYSQL_ERRNO,
+			vErrorMsg = MESSAGE_TEXT;
+
+		IF vLockName IS NOT NULL THEN
+			DO RELEASE_LOCK(vLockName);
+			CALL util.debugAdd('collection_assign', JSON_OBJECT(
+					'errorNumber', vErrorNumber,
+					'errorMsg', vErrorMsg,
+					'lockName', vLockName,
+					'userFk', vUserFk
+				)); -- Tmp
+		END IF;
+		
+		RESIGNAL;
+	END;
 
 	-- Si hay colecciones sin terminar, sale del proceso
 	CALL collection_get(vUserFk);
 
-	SELECT (pc.maxNotReadyCollections - COUNT(*)) <= 0
-		INTO vHasTooMuchCollections
+	SELECT (pc.maxNotReadyCollections - COUNT(*)) <= 0, 
+			collection_assign_lockname
+		INTO vHasTooMuchCollections,
+			vLockName
 		FROM productionConfig pc
 			LEFT JOIN tCollection ON TRUE;
 
@@ -28,6 +55,21 @@ BEGIN
 		CALL util.throw('Hay colecciones pendientes');
 	END IF;
 
+	SELECT warehouseFk, itemPackingTypeFk
+		INTO vWarehouseFk, vItemPackingTypeFk
+		FROM operator
+		WHERE workerFk = vUserFk;
+
+	SET vLockName = CONCAT_WS('/',
+		vLockName,
+		vWarehouseFk,
+		vItemPackingTypeFk
+	);
+
+	IF NOT GET_LOCK(vLockName, vLockTime) THEN
+		CALL util.throw(CONCAT('Cannot get lock: ', vLockName));
+	END IF;
+
 	-- Se eliminan las colecciones sin asignar que estan obsoletas
 	INSERT INTO ticketTracking(stateFk, ticketFk)
 			SELECT s.id, tc.ticketFk
@@ -35,7 +77,7 @@ BEGIN
 					JOIN ticketCollection tc ON tc.collectionFk = c.id
 					JOIN `state` s ON s.code = 'PRINTED_AUTO'
 					JOIN productionConfig pc 
-			WHERE c.workerFk IS NULL
+			WHERE c.workerFk IS NULL 
 				AND TIMEDIFF(util.VN_NOW(), c.created) > pc.maxNotAssignedCollectionLifeTime;
 
 	DELETE c.*
@@ -75,5 +117,7 @@ BEGIN
 	UPDATE `collection`
 		SET workerFk = vUserFk
 		WHERE id = vCollectionFk;
+
+	DO RELEASE_LOCK(vLockName);
 END$$
 DELIMITER ;
diff --git a/db/routines/vn/procedures/collection_new.sql b/db/routines/vn/procedures/collection_new.sql
index b022d8dcc..029427306 100644
--- a/db/routines/vn/procedures/collection_new.sql
+++ b/db/routines/vn/procedures/collection_new.sql
@@ -59,7 +59,8 @@ BEGIN
 					'errorNumber', vErrorNumber,
 					'errorMsg', vErrorMsg,
 					'lockName', vLockName,
-					'userFk', vUserFk
+					'userFk', vUserFk,
+					'ticketFk', vTicketFk
 				)); -- Tmp
 		END IF;