Will EXEMPTAX validate my migrated exemption certificates again?
No. Your migrated documents for Jumpstart are considered legacy exemption certificates. EXEMPTAX will not apply the validation algorithm for migrated legacy documents. Instead it is assumed that those documents were correctly validated in the first place by you or your previous service provider. However, to have that piece of mind, you can either signup for Jumpstart Plus feature or utilize your available validation pool and apply the standard validation process to your legacy exemption certificates as well.