Tutorials: https://developers.sap.com/tutorials/abap-environment-deploy-cf-production.html
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it's strange that in Data Source and Service Selection > ABAP Environment > Error says "ABAP Environment Unavailable"

It seems that sub-accounts between Region:Singapore and Region: US East has different configuration.
SG has SAP Business Application only and no ABAP Instance
while US has ABAP Instance but no SAP Business Application
Please help. Thank you