SIRET <-> SIREN Helper

SIRET <-> SIREN Helper

Model-driven Apps    Canvas Apps    Power Pages
License is Present    Managed Solution Available
A control that validates French SIRET (14-digit) and SIREN (9-digit) company identifiers using the Luhn checksum, including the La Poste exception. Type a SIRET and it instantly shows the SIREN, which it can also write to another column. Type a SIREN, add the 5-digit NIC, and it builds and validates the full SIRET. It runs 100% client-side, with no API calls, no Power Automate flows and no premium license, so it installs and works straight away.

siren siret

Author: Kailash Rajagopal