What are the most common reasons for encountering a 401 error when interacting with the Binance API?

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Grade: Education Subject: Support
What are the most common reasons for encountering a 401 error when interacting with the Binance API?
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The most common reasons include an incorrect or expired API Key, an invalid Secret Key used for signing the request, incorrect request signature generation (e.g., wrong parameters ordered, wrong hashing algorithm), insufficient API key permissions (e.g., trying to trade with a read-only key), or a significant time synchronization difference between your system and Binance's servers leading to invalid timestamps in signed requests.