We have developed a project management system product which we are planning to distribute among different companies (clients) within their premises and we have planned to develop just one app for all the clients, similar to Rocket Chat, Slack etc. There is a system which manages the app from our side but system data will be stored within clients servers. We have an central server to redirect users to relevant servers at the start by entering the organization URL (similar to slack) However, Apple rejected the app submission with the state that we cannot publish apps like that to the app store (having similar apps like slack etc.) What are the steps we are able to take to overcome this situation?

I am using Apple transporter app to upload one of my Apps to Testflight. The reason to use the transporter app is that the upload was stuck in organizer for a long time.Transporter app starts the upload successfully with the progress but the progress never goes 13%, it bounces back to 10% and is stuck in a loop in between 10% and 13%. The upload is around 220mb and I am having a good network connection, but it has been over 3,4 hours but no progress.Is there any workaround for this?