https://www.cnbc.com/2019/01/31/apple-facebook-make-peace-with-restoration-of-key-developer-certificate.html > Apple and Facebook put an end to a short-lived squabble on Thursday when the iPhone maker restored a key developer certificate for the social media company. > "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," a Facebook spokesman told CNBC in a statement. "To be clear, this didn't have an impact on our consumer-facing services."