https://techcrunch.com/2019/01/31/mess-with-the-cook/

After TechCrunch caught Facebook violating Apple’s employee-only app distribution policy to pay people for all their phone data, Apple invalidated the social network’s Enterprise Certificate as punishment. That deactivated not only this Facebook Research app VPN, but also all of Facebook’s internal iOS apps for workplace collaboration, beta testing, and even getting the company lunch or bus schedule. That threw Facebook’s offices into chaos yesterday morning. Now after nearly two work days, Apple has ended Facebook’s time-out and restored its Enterprise Certification. That means employees can once again access all their office tools, pre-launch test versions of Facebook and Instagram…and the lunch menu.

A Facebook spokesperson issued this statement to TechCrunch: “We have had our Enterprise Certification, which enables our internal employee applications, restored. We are in the process of getting our internal apps up and running. To be clear, this didn’t have an impact on our consumer-facing services.”