What should I do if I can't log in to Apple's external service ID? Don't worry about it Account resources

What should I do if I can't log in to Apple's external service ID? Don't worry about it

In our daily life, we always encounter various seemingly intractable problems, such as the inability to log in to Apple's external service ID. This will not only affect our work and life, but also may cause a series of unnecessary troubles. However, you don't have to worry about it. Next, I will deeply analyze the root cause of this problem for you
read the whole passage