I have a question on the line item Not 1st week of Timescale? in the "SYS01 Time Settings By Week' module of Supply Chain Model. I am trying to understand the formula for First week of the timescale. Whatever i try to generate for this lineitem is based on the current period of the timescale. What i am trying to understand is that is there any logic which does not have to depend on the current period because that be can change anytime. Please also let me know if my understanding that the 1st week of Timescale should never change even though the current period changes. Please let me know if you need any other information.