We would like to inform all users of the Electronic Invoice System that the changes and functionalities of SEF version 4.0.0 will be available in the production environment from Saturday, July 25, 2026.
We would like to draw your attention to the fact that within this version, integration with the SEF Admin module has been performed, as well as the introduction of checking the entry of quantities and prices on document items in all types of electronic invoices.
It is possible to enter only positive values, while the entry of negative values is allowed only in the case of the application of the tax category N - Annulment.
In addition, given that important functionalities will be moved to the SEF Admin module, it is necessary to check the currently assigned roles or restrictions to users in the production environment in a timely manner and, if necessary, make changes.
SEF version 4.0.0 is available for testing on the DEMO environment from July 3, 2026, more details can be found in the document below and at the following link .
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