I have to ask the customer Peppol ID?
Short answer
Not always. Peppol However, the customer address (participant identifier) should not be guessed by name of the firm or manually supplemented without verification. For Slovak entities it is a key identifier tax identification number in scheme 0245 but knowledge itself tax identification number It is not yet enough to verify whether the customer is actually in the network publor if he can accept a specific type of document you want to send him. For important partners, public sector or several entities, it is safer to confirm the address in onboarding.
Technical verification
Loopup will help find out if the participant is on the p networkublforged and what documents he can accept, however, it is not a substitute for the correct business master data.
Commercial Truth
In the system you need the right connection to a particular customer (name, company registration number, tax identification number, VAT identification number- the identifier must fit with reality.
Safe procedure for larger partners
For significant customers, public sector or groups of companies, please confirm your address in onboarding Þ reduce the risk of sending an invoice to a technically existing but commercially incorrect recipient.
Looster is not a business approval
Loopup says the participant is publCocked and what he can accept. He will not say that you should invoice this entity, this branch or this contract reference.
Conclusion
Not legal advice. Machine-translated answer, not yet manually reviewed. For the exact wording, see the Slovak original.