Form 16A for dividend shares

Form 26AS does not have a certificate number that we can fill while filing income tax return in the TDS section while Form 16A has a certificate number and this has to be entered in the IT Return. Many good companies have still not sent Form 16A for TDS on dividends paid in FY 2020-21 AY 2021-22 though the last date of giving Form 16A is 31-07-2021 inspite of repeated reminders. Is it possible to leave the space of certificate number blank or mention XXXXXXX and then file the return?