Be persistent! Make sure the puppy doesn't get the opportunity to pee and poop by using a leash indoors or confining him to a crate when you're out. Depending on the puppies age, pop him outside every 20 - 30 minutes, so there's a greater chance of him toileting outside (by accident at first.) In addition, get rid of any scent markers he's left by peeing or pooping indoors, as these will draw him back to the same spot. This means cleaning the area daily, for 2- 3 weeks after he last pooped there to fully get rid of any lingering odor that the dog can detect.
Clicker training, a common form of positive reinforcement, is a simple and effective dog training method. Although it is still fine to train your dog without clicker training, many people find it helpful. With clicker training, you can easily and effectively teach your dog all kinds of basic and advanced commands and tricks. It's fast and easy to learn how to clicker train your dog Puppy potty Training
Work on only one part of a skill at a time Many of the skills we want our dogs to learn are complex. For instance, if you want to train a solid sit-stay, you’ll need to work on teaching your dog that she should stay in a sitting position until you release her (duration), she should stay while you move away from her (distance), and she should stay while distracting things are going on around her (distraction). You’ll probably both get frustrated if you try to teach her all of these things at the same time. Instead, start with just one part of the skill and, when your dog has mastered that, add another part. For example, you can work on duration first. When your dog can sit-stay for a few minutes in a quiet place with no distractions while you stand right next to her, start training her to stay while you move away from her. While you focus on that new part of the skill, go back to asking your dog to stay for just a few seconds again. When your dog can stay while you move around the room, slowly build up the duration of the stay again. Then you can add the next part-training in a more distracting environment. Again, when you make the skill harder by adding distraction, make the other parts-duration and distance-easier for a little while. If you work on all the parts of a complex skill separately before putting them together, you’ll set your dog up to succeed. Can I train my dog myself?