MetaMask - Invalid amount in MetaMask app on iPhone

So I guess there is problem with erc20, since its working with native matic.

Same issue on android metamask app. Works fine for native transfers. I also confirmed the raw transaction data matches.

Yes, I can send BNB on binance chain no problem, also MATIC on mumbai polygon chain, native works on desktop and mobile.

But erc20 works only on desktop. But I still dont know if this is metamask mobile problem or Moralis?

Having the exact same problem!
Did you manage to solve it somehow? Or understand why it happens ?

Nop, it’s not working. I though Moralis team would want to solve this problem, but there is no response…

did you try with ethers directly and it worked with an ERC20 token?

No, do you have example how to do it?

you can try something like this:

abi = [
        "constant": false,
        "inputs": [
                "name": "_to",
                "type": "address"
                "name": "_value",
                "type": "uint256"
        "name": "transfer",
        "outputs": [
                "name": "",
                "type": "bool"
        "payable": false,
        "stateMutability": "nonpayable",
        "type": "function"

ethers = Moralis.web3Library
web3 = await Moralis.enableWeb3()
signer = web3.getSigner()
contract = new ethers.Contract("0xcontract_address", abi, web3)
await contract.connect(signer).transfer("0x321314124", 100)

I didn’t test it if it really works

Ok I tried this. Had to change value to ethers.utils.parseUnits(Amount, 18).

Result is, that this also worked only on desktop, but not on mobile app :confused:

it looks like a problem from metamask:

What is the best alternative to MetaMask?

usually wallet connect is used on mobile

Hi Guys,

Just add gasPrice in your transaction parameters and it will work.


1 Like

Please be kind and give me example how I set this, since there is nothing about that in moralis documentation. Thanks.

Hello RBE again. I tried this and I still get “Invalid amount” error:

Try using ethers.js directly as you’ve tried before but with setting the gasPrice. You can’t set gasPrice in the options using Moralis, it won’t use it.

Here is my last code:

This works on desktop and on mobile.

Maybe Moralis team should add option for gasLimit and gasPrice, otherwise you can’t user moralis for ERC20 transactions…


Hi there,
is there a fix for that ?
Having the exact same pb using unity.
Using the code from the documentation, on iphone and android:

public async void transferToken()
        string EIPTransferTokenABI = "[{\"inputs\":[{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"transfer\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}]";
         // change the contract address to transfer different tokens
        string DAIContractAddress = "0x6B175474E89094C44Da98b954EedeAC495271d0F";
        string FunctioName = "transfer";
        string receiverAddress = "0x0EF9...";
        BigInteger DAIInWei = UnitConversion.Convert.ToWei(5, 18);
        // params - toAddress, amount
       object[] inputParams = { receiverAddress, DAIInWei };
        HexBigInteger value = new HexBigInteger("0x0");
        HexBigInteger gas = new HexBigInteger("800000");
        HexBigInteger gasprice = new HexBigInteger("230000");
            string result = await Moralis.ExecuteContractFunction(contractAddress: DAIContractAddress, abi: EIPTransferTokenABI, functionName: FunctioName, args: inputParams, value: value, gas: gas, gasPrice: gasprice);
            Debug.Log("Txhash :" + result);
        catch (Exception error)
            Debug.Log("Error :" + error);

Yes a solution is to set gas manually. Are you still getting the same “Invalid amount” error? Try different gas values.

I am indeed getting this same error :frowning:
yes ser, tried different amounts from 23000 to 2300000 but no luck …

Really don’t know what to do here