Missing values when submitting file through Match service

I found out there are some missing values in downloading csv file. Please see the attached file. I am wondering the what cause missing values in placekey and other important columns.

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Hey ! Thanks for the question. Looks like you generated this through our Match service. Understandably, there will be situations where we won’t be able to match your list to our SafeGraph POIs perfectly. Looking at your file, the rows that could not match to a Placekey will not have any Patterns data, which are all blank columns you’re seeing.

Got it. Thanks

Thank you for the great question! To prevent any further questions from being overlooked, I’ll go ahead and close this thread out. If you have any more questions or follow-up questions, we’re always here to help! Just be sure to make a new post to help, as we aren’t monitoring old threads at this time. Thanks!