Is there an advantage in mentioning the exchange rate immediately in this format, for example, 32.57, so that 1 EUR becomes 32.57 instead of every 1 TL being 0.030699 EUR

'm here to ensure you can set the exchange rate in the format that best suits your needs in QuickBooks Online (QBO), accounts.

If you want to change the rate for all transactions, you can edit it by going to the Currencies Center. Here's how:

1. Go to the Gear icon and choose Currencies.

2. Find the currency to change and click Edit currency exchange rate from the Action column.

3. From the Edit currency exchange rate window, choose Your Rate radio button.

4. Enter the new rate in the field provided.

5. Once done, click Save. 

However, if you only want to change the rate for a single transaction, you can manually add them in the Rate field. I've added screenshots for your reference. 

I've added some links that help you understand how QuickBooks' multi-currency and exchange rates work. Please check them out below: 

• About Multicurrency
• About exchange rates

Stay in touch whenever you need additional help modifying a currency's rate. I'm always available to address all your concerns. Take care and have a good one!