My dogs having issues switching to raw?

I'm switching my 8 month old 7.4 lb dog to a commercial raw food called Paw Naturaw gr-fed organic bison diet. She was eating By Nature Organics canned food before, and most recently a homemade 2/3 boiled organic chicken 1/3 pureed organic veggie/fruit diet to bridge the gap between her last case of BN and the Paw Naturaw getting here. I tried switching her cold-turkey, and that led to the runs. I cleared it up using Earth's Best pumpkin baby food and had another go at it, this time gradually increasing the amount of bison mixed with her chicken and veggies. She had a couple solid poops and was fine for a couple days, but than last night she threw up a couple times but otherwise seemed fine. I had just gotten her up to a half and half mix. I give Flying Bet Organics probiotics daily as a preventative, and there are Flying Bet Organics digestive enzymes blended into her veggies. She also gets 1/3 tsp wild alaskan salmon oil daily, along with Organic Pet Superfood Immunity (a dried mushroom mix) I kept all of that the same. What else can I do to help her? I will be giving her vet a call when they open, but thought I might find more raw wisdom here lol. oh and here's the ingredients- Organic gr fed bison, organic bison liver, organic spinach, organic broccoli, organic carrot, organic celery, organic apple, organic sweet potato, organic cranberry, organic cuber, tricalcium phosphate, organic flaxseed, organic safflower oil, gr fed organic bison heart, gr fed organic bison kidney, organic lecithin, sea salt, zinc proteinate, vitamin E supplement, copper proteinate, manganese proteinate, calcium iodate, and vitamin D3 supplement.