How long does it take for the case to become administrative?

In general, after the certificate is signed on the same day. The system will display administrative reconsideration, which usually takes about 2-3 days. But if the administrative reconsideration still shows after 2-3 days, it's hard to say. Some may be approved in 4-5 days soon, but some are slow, and it is also possible in February-March.