Yes, switching from your existing implementation partner to a new Business Central support partner is completely fine.
In fact, often, your incumbent partner may deceive you with a common myth, “Changing your partner will fade your system performance because of limited access to the code.”
However, we have been helping businesses switch to us for prompt Business Central support for many years now.
And we have rarely found any inaccessible code. And it is only possible if your existing partner has used unethical coding practice, which is highly rare. Thus, we assist you in making the switching process seamless.