Frequently asked questions
- Put your Register online
- Browsers supported for AOC consortium services
- How can I process the adhesion to the Interoperability Framework Agreement?
- How can I apply for an AOC Electronic Seal?
- How to renew the Seal certificate to use AEAT services?
- How can you access the SARA Network?
- Possible errors with the AEAT
- How do I save the CSV file for batch queries in Via Oberta?