I having been using a pivot table for a couple of weeks and been refreshing it each day and the information has updated. I have refreshed the pivot table today and the data is missing (cells blank). I have had this problem before and other than create a new pivot table, I do note know how to solve this. Could anyone help please?

This could be due to the fact that your pivot data source is not dynamic.You should find teh necessary info ( also XL2013) at this place

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Many thanks Pecoflyer for your help on this.