(a)for interventions subject to the area monitoring system, at any time prior to a deadline to be set by the Member State, which shall be no later than 15 calendar days before the date when the first instalment is to be paid in accordance with Article 44(2), first subparagraph, of Regulation (EU) 2021/2116. However, amendments or withdrawals shall not be allowed with respect to non-compliances related to non-monitorable eligibility conditions revealed by means other than the area monitoring system or administrative checks or once the Member State has informed the beneficiary of its intention to carry out an on-the-spot-check;