The "Same Store Sales" report under Analytics > Store Sales calculates its data by comparing year-to-year data, meaning that there has to be more than a year's worth of loyalty data in Punchh for the reports to actually show any results.
If the brand has been live with Punchh for less than a year, then the report will be blank and won't calculate any data. The report will show results once the brand has a year's worth of loyalty data in Punchh.
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