As of April 12th, you must go to Progress SupportLink to create new support cases or to access existing cases. Please, bookmark the SupportLink URL and use the new portal to contact the support team.
In Flex you may use modules.dataStore() and findById() method as it is shown here: https://devcenter.kinvey.com/rest/reference/flex/reference.html#data-store-module
There is no need to convert the id to objectID as in BL collectionAccess.
I know that when doing BL I should search by ID using collectionAccess.objectID(idString). What's the flex equivalent? Flex doesn't have a collectionAccess module.