Just curious what the thought / standard might be as to requiring (or strongly preferring) that your monthly AdWords clients allow you to manage their account through your MCC vs them creating an 'invitation to access' for you.
I would think that the MCC is the optimal way to go because you use the templates, don't have to remember 100 passwords, and the biggest: saves you time.
I haven't run into an issue yet but just curious if some of you have run into clients who simply want to invite you vs MMC link and if/how you overcame it.
PMs welcome as well if you'd prefer not to post a response.
We have all clients link through MCC in order to facilitate API access. Also streamlines login so all client reps can have simple access. Then within MCC we set up sub-MCC accounts for each manager and the clients they are responsible for.