Some information is taken from your ELSTER login option or online ID card (identity card or electronic residence permit) and cannot be changed. If some of this data is not up to date and you wish to change it, you must arrange to have this done with your registration authority or your tax office as a company.
In order to change business customer data, you must be the main user of the business customer account. A main user can give you the authorisation to do this at any time.
You have to access your e-mail address regularly in order to read inbox notifications promptly. You cannot access a notice directly via the notification. To retrieve an inbox message, you must log on again to the Customs Portal. The notices or administrative acts shall be deemed to have been notified with legal effect on the fourth day after the e-mail was sent (section 122a (4) first sentence AO).
Irrespective of this, if notification is not possible for technical reasons pursuant to section 122a AO or if notification by other means is required, the main customs office reserves the right to conduct notification by other means (e.g. by post) even if consent to the retrieval of notices has been given.
You can revoke your consent to notification via electronic retrieval in the portal settings at any time with effect for future notification.