sequenceDiagram
autonumber
actor Credit Card Holder
actor Principal
Actor Accountant
participant Merchant
participant Credit Card Issuer
participant MSTeams
participant Power BI
Credit Card Holder->>Merchant: buy
Merchant->>Credit Card Issuer: trx
Credit Card Issuer->>Accountant: send
Note over Accountant: STATEMENT
Accountant->>MSTeams: enter trx (manual)
Note over MSTeams: EXCEL
Power BI ->> MSTeams : load data
Note over Power BI: Dashboard
Principal->>Power BI: review expenses
Principal->>Credit Card Holder: clarify & instruct