The difference between FAH and SLA

FAH = Financials Accounting Hub
SLA = Subledger Accounting

What’s the difference?

From a technology perspective, there is zero difference.
XLA is the technical label for the FAH/SLA solution. XLA is the common framework which handles all accounting feeds into the E-Business Suite General Ledger. Therefore, technically XLA = SLA = FAH.

So if FAH and SLA both use the exact same technology, why are they labelled differently?
The difference is within the way how the technology should be used:

Subledger Accounting (SLA):

• Deals with the E-Business Suite subledger applications (AR, AP, etc.).
• Seeded event models which cannot be changed (extensions can be build using Custom Sources).
• Seeded accounting methods which can be customized (copied and modified) at will.
• Integral part of E-Business Suite Financials (R12 onwards).

Financials Accounting Hub (FAH):

• Deals with external (i.e. non-E-Business Suite) applications.
• No seeded event models – event models need to be build from scratch. 
• No seeded accounting rules – accounting rules need to be build from scratch.
• Requires purchasing a separate license.

Cross posted to oraclecs.com