The DATEV extension exports receivables based on the data from documents. If these were created according to the Pickware standard logic, all receivables based on invoices, cancellation invoices, and invoice corrections can be exported without any issues.
Payments are exported based on the data shown in the respective order under the DATEV Zahlungen (DATEV Payments) tab. For orders whose payment was received before the DATEV extension was set up, these entries can be generated retroactively. You'll find a button for this in the configuration of the DATEV extension.
For payments to be recorded automatically in the DATEV extension, a status change to one of the defined payment statuses must occur (e.g. from open to paid). However, if the order is created directly with the status paid – for example, when importing through an external interface like Mirakl Connect – no payment is created automatically. In this case, you can have the payments created retroactively using the Zahlungen nachträglich erfassen (Record Payments Retroactively) button in the configuration of the DATEV extension.
Depending on the order volume, it can take several minutes until the payments have been fully created.
Please note, however, that it cannot be guaranteed that every business transaction is mapped correctly for old orders. When exporting an old order, it's not possible to determine exactly what status it was created in. This means that, for example, only one payment instead of two will be created if an order is created with the status Paid and is then followed by another status change to Paid. So in this case, have your tax advisor check the data before it's imported into DATEV.