Hello Lutz,
Thank you for using our Microsoft Advertising Learn Q&A Platform!
Thank you for reaching out and for providing detailed background on your Microsoft Ads account. I understand how frustrating it can be when campaigns suddenly stop delivering, especially after initially performing well.
While account status and budget settings play a role, campaign delivery can also be affected by factors such as the type of campaigns you're running and the bidding strategy in place. These elements can significantly influence how and when your ads are shown.
That said, I'd be happy to take a closer look at your account and monitor the situation together to ensure everything is set up for optimal performance. We also have a dedicated team of advertising experts who can offer personalized guidance, completely free of charge.
I will send you a private message where you can securely share your account information. Once I receive that, I’ll review the account and work with you to find the best possible solution.
I hope the information provided here will at least partly answer your question. You are more than welcome to respond to me so that I can begin the investigation on my end.
Kind regards,
Arsen D. | Microsoft Advertising Support Specialist | 800-518-5689