High-Level Timeline (**proposed**)
September thru the end of October - Plan, create/update test scripts in ALM, move pending support & project work into production.
10/12/2017 - SAP release of year end base level support pack
10/19/2017 - Last date to implement support & enhancement changes until freeze ends on 12/13/2017
10/20/2017 - Development Freeze begins
10/23/2017 - End of day production snapshot to be used to refresh test environments (9/25 for SF3)
10/25/2017 - Unit test
11/02/2017 - 11/03/2017 Controlled Payroll Runs (SH2)
11/06/2017 - System Integration Test (regression test fixes: 11/29-30/2017)
12/08/2017 - Go-live weekend! (start Friday at 5pm)
12/13/2017 - Development Freeze ends
