You don’t need to keep an amount in the Venmo app as long as it’s connected to your bank account. When you make a payment with a zero Venmo balance, the money will be taken out of your bank account. A distinct problem might arise if there are no funds in your bank account. In essence, the app will use your associated bank account to make up the difference if your payment exceeds your Venmo amount. This is how to put money in venmo

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