SAP Banking Servcies (BaS) and SAP Bank Analyzer

At High level for Banking Services, following is the Set up of new bank -

• Sap business partner for financial services (SAP BP –CRM)
• Product and order management (Based on products Loan –CML , AM, DM or IA)
• Foundation set up such basic bank keys, bpa, master agreement etc
• Pricing financial conditions based on product line - country specific
• Settlement - Settlement  rules  - Extended settlement  daily EoD, differ or other per Kyc etc
• Payment transactions - direct posting, accrual or realization based on SO etc
• Currency exchange - config
• Posting checks , Posting lock management - direct posting, accrual or realization based on SO etc
• Posting control office - work flow 
• Posting control rules  - work flow   etc
• Account management
• Master contract management
Effective cash pooling
Bundle pricing
Interest compensation
Charge compensation
Facilities
• Collateral management
• General ledger transfer
• End of day processing
• Post processing office
• Release tool

For Bank Analyzer - essential from technical front is good knowledge of ABAP/BAPI, BI (data feeder) – and knowledge of Index, ALV and work list etc –
Functionally – Accounting (thick ledger concepts)  IFRs reporting and Fair Valuation knowledge is important, just data feed, data flow doesn’t give full coverage for implementation  BA -  it is said, BA implementation might be right but does it do right things for business, must have Accounting principal understand not just limited to Dr & Cr but low level micros accountings of transactions as :
Ensuring, reviewing that feeder system data (that is banking transactions) are accounted for in the optimal way under IFRS to minimise income statement and equity volatility.
In-depth knowledge of banking products and their impact on banking volatility using appropriate / applicable accounting rules to be configure in the SAP BA system
Hedge, stress, merge cases from a micro accounting perspective
IFRs reporting, MI and analytics, reconciliation (n dimensional)  to assess various accounting relationships, balance processing  with  Finance teams as part of the strategic accounting reporting process, and understanding of Front Office teams system transactions as part of the day-to-day activities – map activities to SAP BA data conversion as source layer (ETL/BI, DLL,SDL to processes & finally mapping to RDL – full understanding of the processed data to accounting information - & valuation understanding)
Compiling  daily data for  profit and loss or balance sheet reporting, determine appropriate accounting treatment (eg under IAS39) - Period end related analyses / procedure from accounting perspective -
Retrospective and prospective testing of accounting relationships to ensure compliance applying identification, designation of accounting entries
On top of all, be successful in SAP banking (either be transactions or analytical – important is a good knowledge of banking products, processes (retail or investment) and for SAP BA - the accounting for financial instruments knowledge –
An aptitude and willingness to learn Functional / Business & IT processes
Good Luck all…