Dear Nattakan / Ricky,
We do need the following to be furnished not on overnight but should be as expected.
1. Project Plan – Must be available also since the project is to kick start.
2. Cutover Plan – Must be available not on one or two days before go-live as mentioned but it should be one or two weeks in advanced prior to go-live date planned.
3. Readiness Review result – with this result only the Production deployment will be agreed to proceed.
There is a key note to take.
For any Web Service Production implementation and go-live, it must have proper plan to arrange for Firewall setup, which will only available as indicated very clear in the email attached (screen captured in below), as well as in the Pre-requisite document of the FBR.