Can a customer be registered in another SMP?
Short answer
Yes, in Peppol architecture can be registered by the participant via the SMP infrastructure of its provider, prcompany registration numberm search is done through the standard discovery mechanism. It should not be relevant for the sender in which a particular SMP is stored, but whether the participant ID can be found to support the requested document and whether it is directed to the correct Access Point.
Metadata
Maintains direction and supported documents.
Discovery
Helps find the right MP record.
Address of participant
It determines the exact scheme and value.
Practical test
Verify the existence, support and direction.
Conclusion
Customer registration in another SMP is not a problem if Peppol discovery finds the correct participant ID, supported document and current direction.
Financial Administration of the Slovak Republic, FAQ 9/VAT/2025/IM k e-invoice, July 2026 update
Not legal advice. Machine-translated answer, not yet manually reviewed. For the exact wording, see the Slovak original.