It was good to meet you in person at SAP TechEd. Apologies for late reply as we were quite held up with TechEd activities.
Thank you for showing interest to host a SAP Codejam.
Below few points will help you to clarify initial questions.
1. SAP Codejam is a SAP community event which means it's open to SAP community i.e customers/partners.
2. We will create an event and open for registration. Anyone who registers should be allowed to attend the event.
3. SAP will not charge for this event. As a host, you need to provide us a training room set up to do the hands on exercises. We, the Developer Advocates will come to the venue where you want to host the Codejam and conduct it.
4. The topic of ABAP Cloud and CAP is fine for us.