When i tried to use the transfer() i get the error revert ERC20: transfer amount exceeds balance but when i use transferFrom() with little changes, i don’t get the error. What could be the issue, please? Attached is a screenshot to show both implementations. Using TransferFrom [Screen Shot 2020-…

Hi @sirphemmiey , When an ERC20 token holder interacts with another contract using the token, two transactions are required: The token holder calls approve to set an allowance of tokens that the contract can use. (assuming an OpenZeppelin ERC20 implementation can use increaseAllowance ) The token h…

ERC20 transfer not working

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abcoathup Split this topic December 17, 2020, 8:35pm 7

A post was split to a new topic: Ordering of _transfer and _approve in ERC20 transferFrom?

Topic		Replies	Views
ERC20: transfer amount exceeds balance Contracts erc20 , erc721	5	22315	November 18, 2021
transferFrom() always reverts with "revert ERC20: transfer amount exceeds allowance" Contracts erc20	4	11299	December 31, 2021
Using approve to allow transfer of ERC20 tokens in a contract Contracts erc20	3	2860	October 29, 2020
Example on how to use ERC20 token in another contract Guides and Tutorials erc20	21	44258	May 26, 2022
Revert when using ERC20 transferFrom in a contract Contracts	3	3923	October 28, 2020

ERC20 transfer not working

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