Into the vessel of a large slow cooker, add boneless chicken breast, chicken stock, enchilada sauce, black beans, diced tomatoes, corn, chopped green chiles, diced onion, minced garlic, cumin, black pepper, and salt.
Cover and cook on LOW FOR 6 hours or HIGH for 3 hours.
When cook time is complete. Chicken will be cooked through with an internal temperature of 165°F. Remove and shred the chicken.
Remove the chicken and either shred or dice the chicken.
Return chicken to the slow cooker. Taste the soup for seasoning. If needed, adjust any seasoning.
Use a ladle to serve the soup into bowls. Garnish with your favorites such as sour cream, Remove and shred the chicken. slices, shredded cheddar or Mexican cheese, chopped cilantro.