CAllCrmActivity::DeleteBindingsByOwner

static function DeleteBindingsByOwner($ownerTypeID, $ownerID)
{
	$ownerID = intval($ownerID);
	$ownerTypeID = intval($ownerTypeID);
	if($ownerID <= 0 || $ownerTypeID <= 0)
	{
		return array();
	}

	$bindingTableName = CCrmActivity::BINDING_TABLE_NAME;
	global $DB;

	$dbRes = $DB->Query(
		"SELECT ACTIVITY_ID FROM {$bindingTableName} WHERE OWNER_ID = {$ownerID} AND OWNER_TYPE_ID = {$ownerTypeID}",
		false,
		'File: '.__FILE__.'
Line: '.__LINE__
	);

	$processedIDs = array();
	if(is_object($dbRes))
	{
		while($arRes = $dbRes->Fetch())
		{
			$processedIDs[] = intval($arRes['ACTIVITY_ID']);
			Crm\Activity\UncompletedActivity::synchronizeForActivity((int)$arRes['ACTIVITY_ID'], [
				[
					'OWNER_TYPE_ID' => $ownerTypeID,
					'OWNER_ID' => $ownerID,
				]
			]);
		}
	}

	if(!empty($processedIDs))
	{
		$DB->Query(
			"DELETE FROM {$bindingTableName} WHERE OWNER_ID = {$ownerID} AND OWNER_TYPE_ID = {$ownerTypeID}",
			false,
			'File: '.__FILE__.'
Line: '.__LINE__
		);

		foreach ($processedIDs as $activityId)
		{
			\Bitrix\Crm\Counter\Monitor::getInstance()->onChangeActivitySingleBinding(
				$activityId,
				[
					'OWNER_TYPE_ID' => $ownerTypeID,
					'OWNER_ID' => $ownerID,
				],
				[]
			);

			Crm\Activity\Provider\ProviderManager::syncBadgesOnBindingsChange(
				$activityId,
				[],
				[
					['OWNER_TYPE_ID' => $ownerTypeID, 'OWNER_ID' => $ownerID]
				],
			);
		}

		if (\CCrmOwnerType::IsDefined($ownerTypeID))
		{
			Crm\Service\Timeline\Monitor::getInstance()->onActivityRemove(new Crm\ItemIdentifier($ownerTypeID, $ownerID));
		}
	}

	return $processedIDs;
}