It is unfair to the dog to expect him to adjust overnight. Dogs are creatures of habit and they like schedules. Discuss what schedule the dog was on at the breeder's and adjust it gradually. Decide in advance where your dog will be eliminating. Whichever you chose, stick with it.
Problems can occur when changing.
When planning to allow your dog to use papers indoors during bad weather, make sure that your dog is first paper trained, then train him to go outdoors. This will usually require that you take papers outdoors to the spot you want your dog go. Since your dog is already accustomed to taking care of business on papers, he will probably be reluctant to go in the great outdoors. Using the papers as a transition point, will alleviate that obstacle. As stated before, the biggest mistake made by pet owners is giving an IG too much freedom too soon.