On Binance, there are more than one type of wallet within your account, the most important of which are:
1. Spot Wallet:
This is the primary wallet used for trading and buying/selling currencies.
When you buy a coin or deposit it from outside, it usually goes to this wallet.
2. Funding Wallet:
This is used for services like P2P, Simple Earn, Binance Card, and others.
Sometimes you need to transfer currencies from the spot wallet to this wallet to use certain features.
Why is this important for "Simple Earn"?
When you want to subscribe to Simple Earn, the currency you want to use must be available in the correct wallet. In most cases, it should be in the Spot Wallet.
What to do if the currency is in another wallet?
You can easily transfer it:
1. Open the Binance app or website.
2. Go to "Wallet" > "Overview".
3. Tap on "Transfer".
4. Choose from: Funding or Spot (depending on where the currency is).
5. Choose to: Spot or Funding.
6. Select the currency and amount, then press Confirm.
The transfer between wallets is instant and free.