FAQ
Answers for questions on topics ranging from the basics of zkSync Era to the features of our platform frequently asked by our users.
What is Gas Fee? ⛽
FeaturedAn elaborate description of gas fee, its function and the optimum price and limit.
What is an ERC-721 Token?
Unlike ERC-20, ERC-721 tokens are non-fungible; meaning that each and every ERC-721 token has it's own unique value and is to be treated individually.
Transaction Dropped & Replaced?
A transaction that is previously broadcasted on the network (but yet to be included in a block) can get dropped from the connected nodes.
Token Transfer Might Have Failed?
There are times when a ERC-20 token transfer might have failed and this article lists some of the common reasons.
How to refund a Transaction?
I have sent funds to the wrong address on zkSync Era. Can I get a refund or cancel the transaction?
How to transfer and withdraw from the block explorer?
zkSync Era Explorer is a block explorer for zkSync Era and can only provide and display information on transactions that occur within the network.
What is an ERC-1155 Token?
Other than the popular ERC-20 and ERC-721 tokens, there is a third token standard that is widely used in zkSync Era.
What are the Reasons for Failed Transactions?
When a transaction fails, the funds remain minus the gas fees. There are different scenarios in why a transaction fails in the first place.
What is an ERC-20 token ?
ERC-20 tokens are tokens that follow a set of standards defined for smart contracts on zkSync Era.
What is a Pending Transaction? ⌛
If your transaction shows Pending, your transaction is pending to be mined, please be patient.