# Removing PON files from storage

The PON file (combined counts file) is not stored within Emedgene but within the customer storage location, which means that the file is retrieved each time a new case using the associated test kit is processed.

**NOTE:** If the combined counts file is removed from the storage location, then new cases created with the associated test kit, or reanalysis that includes secondary analysis, will have an error and go to status of "Issue Reported".

If PON file is deleted from storage, but customer is now using a different DRAGEN version or Ref Genome build version that has another PON, then that new file will be used without case failure.


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