So, depending on how old he is and the size of your puppy, it’s unrealistic to expect him to be potty trained before this time. It will be helpful to keep in mind that your puppy is only able to hold their bladder 1 hour for every month old he is. So if your puppy is two months old, they can hold it for about two hours. Don’t go longer than this between bathroom breaks or they’re guaranteed to have an accident.
Every dog needs to learn to walk on a leash. Besides the fact that most areas have leash laws, there will be times when keeping your dog on a leash is for his own safety. Learn how to introduce your dog or puppy to the leash, then teach him how to walk properly on the leash, even beside you on a bike. A loose leash walk teaches your dog not to pull or lunge when on the leash, making the experience more enjoyable for both you and your dog.
If your dog isn’t giving you an obvious signal that they need to go out (like whining at the door) I suggest teaching them to ring a bell when they need to go outside. Some of the other signs dogs give that they need to go out such as pacing around or circling can be easy to miss if they’re in another room, which is why a noise based signal such as ringing a bell can make things easier.
This method is the most effective and flexible. Your pup needs to develop his natural "den instinct" and learn where to eliminate - and where not to. To potty train our puppy we must condition a desire in the pup to avoid soiling the "den" - your house. Confinement and your due diligence in providing access outside the "den" to potty and poop will develop this instinct and eventual desire. When and how to use confinement is described in detail below.
In considering the natural behaviours of specific breeds of dogs, it is possible to train them to perform specialised, highly useful, tasks. For example, Labrador retrievers are the favoured breed for the detection of explosives. This is because of a combination of factors including their food drive which enables them to keep focused on a task despite noise and other distractions. Most working breeds of dogs are able to be trained to find people with their sense of smell (as opposed to their sense of sight). Cocker Spaniels are able to be trained as part of a termite detection team. Their relatively small size enables them to fit into small spaces, and their light weight allows them to walk on areas of ceiling which would be dangerous to anything heavier. In fact, although unusual, termite detection dogs are much more reliable at detecting termites than humans who rely on a basic system of tapping and listening. Because of their ability to learn signals by sight and for their energetic and athletic natures, German Shepherds are able to be trained for work alongside search and rescue teams and human apprehension teams.
In one study laboratory-bred Beagles were divided into three groups. Group A received an electric shock when the dogs touched the prey (a rabbit dummy fixed to a motion device). Group H received a shock when they did not obey a previously trained recall command during hunting. Dogs in group R received the electric shock arbitrarily, i.e. the shock was administered unpredictably and out of context. Group A did not show a significant rise in salivary cortisol levels, while group R and group H did show a significant rise. This led to the conclusion that animals which were able to clearly associate the electric stimulus with their action, i.e. touching the prey, and consequently were able to predict and control the stressor, did not show considerable or persistent stress indicators, while animals that were not able to control the situation to avoid the shock did show significant stress.
Whenever you’re training your dog, it’s important to get as many family members involved as possible so everyone’s on the same page. If you are telling your dog “off” when he jumps on the couch and someone else is saying “down,” while someone else is letting him hang out up there, how on earth is he ever going to learn what you want? Consistency will be the key to your success.
Both dogs and humans benefit from a predictable, consistent house training routine. This routine should account for confinement time, potty breaks, meal times, play time, training time, walks, and all the other enriching activities that are part of your dog’s daily life. Routines make your job easier and help your new puppy get use to your lifestyle.
There are several medical issues that can interfere with potty training. Dogs with a urinary tract infection (UTI) will urinate frequently in small amounts, and will not have much control. You may also notice excessive licking of their genital region. If you notice a change in the consistency of their stool, the cause could be a gastrointestinal issue. Some common causes in puppies are intestinal parasites, having eaten something not in their normal diet, or a sudden food change. If a food change is necessary, do it gradually over 5 to 7 days. If you suspect any of these issues could be a problem, you should consult with your veterinarian.
In 1935, the American Kennel Club began obedience trials, and in the following years popular magazines raised public awareness of the benefits of having a trained pet dog, and of the recreational possibilities of dog training as a hobby. After WWII, the increasing complexities of suburban living demanded that for a pet dog's own protection and its owner's convenience, the dog should be obedient. William Koehler had served as principal trainer at the War Dog Training Center, in California, and after the war became chief trainer for the Orange Empire Dog Club—at the time, the largest dog club in the United States—instructor for a number of breed clubs, and a dog trainer for the Walt Disney Studios. In 1962 Koehler published The Koehler Method of Dog Training, in which he is highly critical of what he calls "tid-bit training techniques" based in "the prattle of 'dog psychologists'". Amongst the training innovations attributed to Koehler is the use of a long line in conjunction with a complete absence of oral communication as a way of instilling attentiveness prior to any leash training. Koehler insisted that participants in his training classes used "emphatic corrections", including leash jerks and throw chains, explaining that tentative, nagging corrections were cruel in that they caused emotional disturbance to the dog. Vicki Hearne, a disciple of Koehler's, commented on the widespread criticism of his corrections, with the explanation that it was the emotionally loaded language used in the book that led to a number of court cases, and to the book being banned in Arizona for a time. Despite the controversy, his basic method forms the core of many contemporary training systems.
Every time your dog pees or poops outside it needs to be celebrated. Give them baby talk or a treat, jump up & down, pat their little heads & remind them of how brilliant that decision was. Yes it might look silly, but your pup needs to know he’s done the best thing ever. When you consistently praise your puppy for going potty outside they’ll start to understand that it’s the correct decision, and one that leads to super fun happy time.
Lindsay says of this study, "Schilder and Van der Borg (2004) have published a report of disturbing findings regarding the short-term and long- term effects of shock used in the context of working dogs that is destined to become a source of significant controversy ... The absence of reduced drive or behavioral suppression with respect to critical activities associated with shock (e.g., bite work) makes one skeptical about the lasting adverse effects the authors claim to document. Although they offer no substantive evidence of trauma or harm to dogs, they provide loads of speculation, anecdotes, insinuations of gender and educational inadequacies, and derogatory comments regarding the motivation and competence of IPO trainers in its place." 
The next step is to teach your dog to ring the bell for a treat. Your dog has to be motivated to ring the bell, and in the beginning going outside isn’t enough to motivate him. But, if you teach him to ring the bell for a treat, he will quickly learn to ring the bell. You’ll want your dog to ring the bell with his nose, so make sure you hang the bell so it is nose level.
Konrad Lorenz, an Austrian scientist who is regarded as developing the foundations of ethological research, further popularised animal behaviorism with his books, Man Meets Dog and King Solomon's Ring. Lorenz stated that there were three essential commands to teach a dog: "lie down" (stay where you are), "basket" (go over there) and "heel" (come with me).