(b)for animal-based interventions under Article 34 of Regulation (EU) 2021/2115 concerning bovine animals or sheep and goats, 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, with respect to the eligibility condition to identify and register the animals, amendments or withdrawals shall be allowed only prior to the date fixed by the Member State in accordance with Article 34(2), second sentence, of Regulation (EU) 2021/2115 and if the deadline referred to in the first sentence of this point has not passed. In addition, amendments or withdrawals shall not be allowed once the Member State has informed the beneficiary of its intention to carry out an on-the-spot check or the beneficiary becomes aware of a non-compliance as a result of an unannounced on-the-spot check. Nevertheless, amendments or withdrawals shall be authorised with respect to the part not affected by the non-compliance detected by the on-the-spot check;