What the SUNAT SOL mailbox is and how to avoid missing a notification

A notification deposited in the SOL mailbox is considered legally served from the moment it becomes available, even if nobody has read it. Checking it is not optional.

• The deadline to respond starts running even if the notification has not been read.
• Not responding in time can lead to coercive collection or losing the right to file objections.
• Managing several RUCs manually makes it easy for a notification to go unnoticed.