Place the sweet potato cubes, chickpeas, onion, and garlic into the crockpot.
Pour in the coconut milk and add the curry powder, cumin, salt, and black pepper.
Stir everything until the spices are evenly mixed with the coconut milk.
Cover and cook on low for 6 to 7 hours, until the sweet potatoes are soft.
Stir the curry once more before serving over cooked rice.