# FAQ

- [Explanation functionalities](/english/untitled/explanation-functionalities.md)
- [Binance API management update](/english/untitled/explanation-functionalities/binance-api-management-update.md)
- [Binance API management update II](/english/untitled/explanation-functionalities/binance-api-management-update-ii.md): Binance has changed its API management menu structure. If you do not want to enter a whitelisted IP address, you must first uncheck a checkbox in the API menu.
- [How does the application choose its language?](/english/untitled/explanation-functionalities/how-does-the-application-choose-its-language.md)
- [What is the difference between Updown strategy and BitBrokerTrade strategy?](/english/untitled/explanation-functionalities/what-is-the-difference-between-updown-strategy-and-bitbrokertrade-strategy.md)
- [How does the UpDown Strategy work](/english/untitled/explanation-functionalities/how-does-the-updown-strategy-work.md)
- [How much influence does the level of the return percentage have on the final profit?](/english/untitled/explanation-functionalities/how-much-influence-does-the-level-of-the-return-percentage-have-on-the-final-profit.md)
- [What is the best return percentage to enter with the trader](/english/untitled/explanation-functionalities/what-is-the-best-return-percentage-to-enter-with-the-trader.md)
- [How and on the basis of which you determine a 'ceiling rate'](/english/untitled/explanation-functionalities/how-and-on-the-basis-of-which-you-determine-a-ceiling-rate.md)
- [How is the size of a transaction determined?](/english/untitled/explanation-functionalities/how-is-the-size-of-a-transaction-determined.md)
- [What is the minimum deposit amount in Euro](/english/untitled/explanation-functionalities/what-is-the-minimum-deposit-amount-in-euro.md)
- [Exchange: amount reserved](/english/untitled/explanation-functionalities/exchange-amount-reserved.md)
- [Trader setting: Maximum open purchases](/english/untitled/explanation-functionalities/trader-setting-maximum-open-purchases.md)
- [How does the calculation of the profit work?](/english/untitled/explanation-functionalities/how-does-the-calculation-of-the-profit-work.md)
- [Can I also try out the operation of the trader first without having to bring in money?](/english/untitled/explanation-functionalities/can-i-also-try-out-the-operation-of-the-trader-first-without-having-to-bring-in-money.md)
- [The dashboard shows the gross profit, but how do I calculate the net profit?](/english/untitled/explanation-functionalities/the-dashboard-shows-the-gross-profit-but-how-do-i-calculate-the-net-profit.md)
- [My dashboard suddenly shows a lower profit](/english/untitled/explanation-functionalities/my-dashboard-suddenly-shows-a-lower-profit.md)
- [Error messages](/english/untitled/error-messages.md)
- [An open position but not enough crypto balance on the exchange](/english/untitled/error-messages/an-open-position-but-not-enough-crypto-balance-on-the-exchange.md): Manual trading on the exchange regularly creates differences (= shortages) on the crypto account in order to be able to sell the positions of the trader. What can I do?
- [There are extremely high trading costs on a number of sales transactions](/english/untitled/error-messages/there-are-extremely-high-trading-costs-on-a-number-of-sales-transactions.md)
- [The trader does not make any purchases, what goes wrong?](/english/untitled/error-messages/the-trader-does-not-make-any-purchases-what-goes-wrong.md)
- [My transaction line in the Purchase transactions screen has a red cross status ?!](/english/untitled/error-messages/my-transaction-line-in-the-purchase-transactions-screen-has-a-red-cross-status.md)
- [Why does the sale of my BNB transaction give an error?](/english/untitled/error-messages/why-does-the-sale-of-my-bnb-transaction-give-an-error.md)
- [Dashboard data does not match historical transaction history](/english/untitled/error-messages/dashboard-data-does-not-match-historical-transaction-history.md): If I add up all the trades in the sell screen I get a much higher profit.
- [The transaction is not sold while the profit percentage has been achieved](/english/untitled/error-messages/the-transaction-is-not-sold-while-the-profit-percentage-has-been-achieved.md): Then an error message appears in case of manual sale