Client::getEntityLimitInfo

public function getEntityLimitInfo(): array
{
	$lastContact = \CCrmContact::GetListEx(
		['ID' => 'DESC'],
		[
			'CHECK_PERMISSIONS' => 'N',
			'@CATEGORY_ID' => 0,
		],
		false,
		['nTopCount' => '1'],
		['ID'],
		['limit' => 1]
	)->Fetch();

	$lastCompany = \CCrmCompany::GetListEx(
		['ID' => 'DESC'],
		[
			'CHECK_PERMISSIONS' => 'N',
			'@CATEGORY_ID' => 0,
		],
		false,
		['nTopCount' => '1'],
		['ID']
	)->Fetch();

	$lastContactId = $lastContact['ID'] ?? 0;
	$lastCompanyId = $lastCompany['ID'] ?? 0;

	return [
		'lastContactId' => $lastContactId,
		'lastCompanyId' => $lastCompanyId,
		'lastId' => max($lastCompanyId, $lastContactId),
	];
}