SII Technical Update

The AEAT has recently revised the technical documentation for the SII. The modifications outlined in the new documentation will take effect in the production environment starting from January 1, 2023. One of the changes includes the addition of a new value, AJ, to the ledger of issued invoices. This value is specifically meant for adjustments related to the benefit’s margin. Additionally, the updated documentation includes new validations and error messages associated with this newly introduced code.

You can access the updated documentation by clicking here.