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Set up a puppy room in which the dog will sleep and eat, rather than letting it roam all over the house. Letting it roam your whole home will make potty training more difficult, as you will have a harder time keeping track of what it is doing. Take the puppy straight out to the spot that you intend it to use as a toilet. Pop it down on the spot and if the dog happens to 'go,' give it heaps of praise. The idea is for the dog to associate going to the bathroom in that spot with getting heaps of praise. This makes it worthwhile for the dog to save up its bodily functions in return for adoration. Of course potty training doesn't happen instantaneously and you need to stick at it. Training requires the puppy to learn where it is meant to go, and where it shouldn't go. To teach the later means constant vigilance. Watch it indoors like a hawk and when the dog shows the earliest signs of wanting to toilet, such as sniffing with great concentration or sidling up to objects, then pick it up and take it outside to the toilet spot. Then when the dog goes in the right place, lavish it with praise. An adult dog that has never been potty trained should be able to hold it for several hours once trained. However, to increase your success rate, take an 8 week old puppy outside every 20-30 minutes. If you can't be with the puppy in between toilet stops, then pop it in its crate rather than letting it go to the bathroom in the house. Also, puppies tend to toilet about 20 minutes after eating, so put him outside after each meal, and likewise immediately after eating. If the dog or puppy does have an accident indoors, be sure to thoroughly clean it up. There should be no lingering odor left behind once you have cleaned it. A lingering odor could draw it back to use the same spot once again.

Summary:
Start toilet training your goldendoodle as soon as you bring it home. Don't get discouraged and be vigilant. Take the dog out frequently. Clean up accidents thoroughly.