I am struggling in the below requirement, could you please help me.
I have below columns
date as using Month(date)
Customer ID as using countd(ID)
I want to find new customers based on below business rule.
if customer ID for the month of Nov not exist in Oct then they are new customers same like who exist in Dec not in Nov.
Could you please suggest.
Could you add a packaged workbook we can help with? This will be the best way to understand the data structure and the issue.
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