My requirement is
Have different weeks based on the customer...
calendar weeks ( starts from week 1 to week 52) but other customer week is starting from 40th week ...this start week will vary every year .
Need to calculate the cumulative sum from week1 to all the week in that year.
I can use the RunningSum( ) if the week is starting from 1 to 51 ...hear I can't because the week one is not the first week. Its week 40th.
Experts please suggest me how can I achieve my results.
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