Hello,

I'm working on a customer registry program. Clients, if interested in the product/service, are entered into the "try out clients" sheet with an amount they pay. Once they fully Register the Clients data is transferred the the "active Clients" sheet where regular payments for each month are entered. Once the client no longer required our product/Service they are entered into the "past Clients" sheet.

I Need to create cells where each months payments are accumulated. The problem / question I have is - is there a function or way to let a cell accumulate and display the sum of multiple cells in a way that even if one or all of these precedent cells is deleted?

Thank you
Felix