One of my invoices doesn't appear in any e-reporting report, why?
Check that the E-reporting Customer Type field is correctly filled in on the invoice (BtoBi or BtoC). This field is never derived automatically: without it, the invoice is silently ignored, which is not an error if the invoice is purely domestic, but which prevents it from being picked up if it should have been classified.
No file was generated on the expected filing date, is this a bug?
Not necessarily. If no invoice or payment matches the period on the filing date, no file is generated: this is the intended behavior, e-reporting does not require an empty declaration. First check that at least one eligible invoice or payment actually exists for the relevant period.
Can I regenerate a report for a past period?
For transaction data, yes, via manual generation for an explicit period. For payment data, this option is not yet available as self-service for a period other than the current one: contact Frisbii support.
Can I correct a single invoice in a period without regenerating everything?
No. A correction always picks up the entire original period, with the data as it stands at the time of the correction.