What to do if you see a message saying "Invalid verification series specified" (Swedish: Ogiltig verifikationsserie angiven)

The cause:

Export fails because a Pleo verification series was added to the wrong financial year in Fortnox

The solution:

In Fortnox, double-check that you're in the correct accounting year:

Next, create a new verification series for Pleo. To do so:

1. Click Settings (Inställningar).

2. Click Bookkeeping (Bokföring).

3. Verification series (Verifikationsserier).

4. Add a Pleo (P) series and tick the box in the manual column (Manuell Kontering).