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Hey, if you are withdrawing to another Steemit account, you only need the account name.

If you are sending it to an exchange, you will always need a memo which the exchange will tell you.

You withdraw on the Wallet page, click your balance and select Transfer.

edit: If you are withdrawing from Earncrypto.com, you can leave memo blank and just fill in your Steemit Username part.

thx...let me try

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