Reset EGS Sequence Data After Onboarding

Q1:Should reset EGS sequence data (such as ICV, PIH) when the onboarding process success and get the production CSID?

Q2: Is Required to archive the xml invoice file witch generated in compliance phase?

q1) Yes , when a new certificate is issued reset counter to 1
q2) since phase1 - you must archive the acual invoices
if test invoices only in simulation … not required