IES Validation client not allowed to validate 2nd and 3rd pages for some invoices?

Dear colleges,

Currently, I americium facing unusual issues successful the IES Validation lawsuit for vendor invoice management.

1. The IES validation lawsuit not allowed to validate 2nd and 3rd pages for immoderate invoices? (not for all)

2. IES Validation lawsuit not picking PO and Service introduction expanse fig successful validation lawsuit for immoderate invoices? (not for each invoices)?