Received an error when registering the sequence?

There are 2 main reasons why an error may occur when registering the series within InvoiceXpress:

1. The step “Set up your data in the Acesso.gov.pt portal” was not completed correctly.

Check if:

1. There is indeed a user created.
2. This user has checked the option “WSE - Comunicação e Gestão de Séries por webservice”:

2. The credentials used to set up the InvoiceXpress account are not valid.

Check if:

1. The data entered during configuration is correct.
2. Communication with AT (Tax Authority) shows the status “Active connection”.

If, after performing these validations, the problem persists, please do not hesitate to contact our Support team.