Hi Ahmed,
As Oliver says Business Center provides a lot of spaces where you can find information about localization, customer specific localization, integration scenarios, data migration, certifications, etc.
Here in SCN you could access to the sub-space about SAP Application Studio to discuss with other developers. Also you can find training videos, documentation, handbooks, discussions and blog spots (very important space).
ByD has the Help Center into it, you can find general information about process, configurations, business scenarios, etc.
You can access to SAP Cloud Applications Studio – SAP Help Portal Page for more information to developers.
Regards!