Upgrade of PBA installations from 5.4 to 5.5 where RUSSIANMARKET container is installed with enabled 1C integration requires additional configuration steps.
In PBA 5.4 factures (aka VAT Invoices) are exported to 1C. Starting from PBA version 5.5, those documents are neither generated any longer, nor exported. "DeliverLines" are exported instead, basing on which 1C prepares the Factures.
A manual operation is required in order to switch from the old export method to the new one. Assuming that the upgrade is scheduled for some date in September, on Sep 01 it is necessary to switch off futher creation of Factures in PBA like described below:
In Provider Control Panel go to Configuration Director > Event Manager Settings > Event Handlers.
Select the handler with Method = "DailyGenerateFactures".
Edit it, settting "Max attempts" = 0.
Factures will not be generated any longer any more. After the upgrade of PBA all required deliver lines for 1C will be exported automatically.