New features
1. New configuration parameter "allow_8_10_digit_invoice_numbers" has been implemented.
2. New fields "sessionKey" and "goErpUIUrl" have been added to the output of the API call createInstallation.
3. The field "invoiceState" in API calls saveSalesDocument and getSalesDocuments now supports the new statuses "IN_PACKING" and "PACKED" for sales orders.
Improvements
1. Returning a second-hand product now reactivates it.
2. The API call saveCampaign now allows the fields "sumOffPurchasedItems" and "percentageOffPurchasedItems" to be set to an empty value.