The exchange limit would vary for different currencies. This amount would be reflected accordingly before you proceed to make the internal exchange.
For reference, below are the respective amounts:
| Currency | Minimum Exchange Limit | Maximum Exchange Limit |
| SGD | 1 | 1,000,000 |
| HKD | 1 | 5,000,000 |
| EUR | 1 | 700,000 |
| GBP | 1 | 500,000 |
| USD | 1 | 1,000,000 |
| AUD | 1 | 1,000,000 |
| JPY | 100 | 50,000,000 |
| CHF | 1 | 340,000 |
| THB | 1 | 10,000,000 |
*Limit is per transaction