Hi Nattakan,
Normal practice, every new account that need to build interface, we will require a new FBR (with project title) for each interface. Whether it is using current interface or needed to build with a new DataStream will be decided by us.
For your case, current FBRs are contain few accounts and it mainly for your simulation and demo, it won’t be applied to production. If 1 of the accounts or any accounts need to roll out to production, it consider a project, it need to have separate FBR with the current FBRs, impossible still use back current FBR and remain unclosed forever.
FYI, to apply web service for new accounts, always inform us as there are some configuration may need to be done on my side.
Kindly take note, only follow standard API will just require setup, if there is any different with the API, it maybe will required development and it take times.
Thanks & Regards,