I'm developing an application with which you can make ERC20 token transfers. When you make transfers from one account to another with a reasonable time between transfers it works correctly.

But when you make many transfers in a very short period of time from one account to another, like making 100 transfers one after another.

To make the transfers I am using the web3j library with version 4.5.15 and connects to the blockchain through Infura.

Why does this happen, and how can I fix it?

I leave you the code where the transfers are executed:

StaticGasProvider staticGasProvider = new StaticGasProvider(gasPrice, gasLimit);
TransactionManager transactionManager = new FastRawTransactionManager(web3j, "my_credentials", new NoOpProcessor(web3j));
ERC20 tokenContract = ERC20.load("token_address", web3j, transactionManager, staticGasProvider);
TransactionReceipt transactionReceipt = tokenContract.transfer("to_address", "amount").send();

Thanks for your help.


  • Please show the relevant code. Dec 15, 2020 at 16:19
  • The problem might the nonce isn't updated quickly enough. Take a look at this question ethereum.stackexchange.com/questions/34502/….
    – Ismael
    Dec 15, 2020 at 19:34
  • It is very difficult for us to help you if we can't see the code where you create, sign and broadcast the transactions.
    – Jesbus
    Dec 16, 2020 at 10:10
  • Sorry, my fault, I just added the code to make it easier to understand the problem Dec 16, 2020 at 14:33

1 Answer 1


As commented, showing your code will definitely help.

In the meantime, I also faced this issue from a backend in Node.js when I was launching several transactions almost simultaneously (in a public testnet).

Adding 'pending' when creating the nonce solved the issue:

    const nonce = await web3.eth.getTransactionCount(params.fromAddress, 'pending');

Please let us know if that is your case.

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