Legacy MSME registration system (now replaced by Udyam Registration) - existing UAM holders should migrate to Udyam.
Udyog Aadhaar Memorandum was the earlier MSME registration system that has now been replaced by Udyam Registration since 1 July 2020. Existing UAM holders are advised to migrate to Udyam Registration to continue availing MSME benefits. Udyam Registration is now the only valid MSME registration.