The schematron to validate invoices and credit notes
Below you find the corresponding customization ID.
Invoice:
urn:www.cenbii.eu:transaction:biitrns010:ver2.0:extended:urn:www.peppol.eu:bis:peppol5a:ver2.0:extended:e-fff:ver3.0
Credit note:
urn:www.cenbii.eu:transaction:biitrns014:ver2.0:extended:urn:www.peppol.eu:bis:peppol5a:ver2.0:extended:e-fff:ver3.0
eFFF Schematron v3 (.zip)