Because they are familiar with the products and services already exists, do not keep a lot of questions. The company shall have less chance of error. They can also modify their behaviour, are compatible with the vendor.
Because they are familiar with our products and services, but it does not take a lot of questions. Companies would have fewer errors. They can modify their behavior to be compatible with the seller.
Because they are familiar with the products and services are already so don't always have so many questions. The company is a mistake. They can also modify the behavior of their compatibility with the seller.