On 29-09-2020 the tax authority did an update as part of the certificate replacement plan. They replaced certain certificates that are used in the tax processes. Due to this replacement Exact had to renew the certificates although this step in the certificate replacement plan should not have affected the process via the PKI certificates between Exact and the tax authority.
Exact replaced the certificates as soon as we found out the root cause.
In the future we aim for a better communication with the tax authority so we can prevent this kind of issues.
We apologize for the inconvenience caused by this issue.