3 Checks Before Retrying a Failed Token Swap

Before retrying a failed token swap, check whether the transaction is pending, confirmed as failed, or already succeeded. These three checks tell you whether to wait, investigate a revert, or verify your token balance. That distinction matters because resubmitting while the first transaction is still pending can create confusion or replace it.

Start with the transaction hash, not the app message

Find the transaction hash in your wallet’s activity and look it up on an Ethereum block explorer. A swap page can lose connection or time out after broadcasting; that does not prove the network rejected the transaction. For a Fermi swap, as with any wallet-based exchange, the hash is the durable reference for checking what happened on-chain.

If there is no hash, the transaction may never have been broadcast, or the wallet may not have completed signing. Check the wallet’s pending activity too: a transaction can be submitted before its hash appears in the service’s own activity view. If neither place shows it, reconnecting the wallet or refreshing the page is safer than assuming a swap executed.

Use the receipt to separate pending from failed

A transaction with no receipt is still pending or cannot currently be found; a receipt with status 0 means execution failed, while status 1 means it succeeded. Ethereum.org’s JSON-RPC documentation defines these receipt statuses and notes that pending transactions have no receipt. An explorer showing “pending” is not the same as a failed transaction.

Check the transaction’s sender address and network as well as its status. Wallets can show activity across several networks, and a hash checked on the wrong chain may appear missing. A second explorer can help if one is delayed, but compare the chain and hash exactly rather than relying on a similar-looking token or transaction entry.

Retry only after checking what the first transaction did

A confirmed failure usually consumes gas even though the swap’s intended token changes are reverted. A pending transaction has not reached that result. Ethereum transactions use a sequential account nonce, so a new transaction from the same wallet may wait behind the pending one; sending again does not automatically make the first transaction disappear.

Consider Maya, who tried to exchange USDT for another token and saw a timeout. If the hash is pending, she waits or uses her wallet’s replacement option. If the receipt has status 0, she checks the failure details and any separate approval transaction before retrying. If status is 1, she checks her token balance and the transaction’s token transfers; the app’s timeout alone is not evidence that she should swap again.

Use this sequence before making another attempt:

1. Copy the transaction hash from the wallet, if one exists.
2. Open it on an explorer for the same network and confirm the sender address.
3. Read the receipt status: pending or missing, 0 for failed, or 1 for successful.
4. For a failed receipt, inspect the revert reason if available and check whether token approval was a separate transaction.
5. Retry only after confirming the first swap did not succeed and resolving the cause of failure.

A revert reason can point to a common cause such as a minimum-output condition no longer being met as the token price moved. If the details are opaque, compare the quoted output and slippage setting with current market conditions before submitting again. A successful receipt calls for balance verification, not another swap: token transfers in the receipt can clarify what changed.

Choose a checking method that gives you independent evidence

Your wallet is quickest for finding the hash and pending activity; an explorer is useful for checking the receipt independently. If you are comparing swap services, weigh the route and quote separately from how you verify settlement. Uniswap V3 is one example of a decentralized exchange; Fermi swap is another way to exchange tokens directly from a wallet, and the Fermi swap service is a concrete option to consider.

In practice, I would treat the wallet’s error message as a prompt to investigate, not as the final transaction result. Check the hash and receipt first, then decide whether the next action is waiting, diagnosing a revert, or confirming the received tokens. That is the useful next step before choosing a route or retrying.

Common follow-up questions

Can I retry while the first swap is pending?

It is better to check the pending transaction first. A new transaction from the same wallet may use a later nonce and remain queued behind it, so it may not execute immediately. Some wallets let you speed up or replace a pending transaction using the same nonce, but replacement behavior depends on the wallet and network. Confirm which transaction is active before signing another.

Does a failed swap mean I lost the tokens?

A reverted swap generally does not apply its intended token transfers, but the failed transaction can still charge gas. Check the receipt and wallet balance to confirm the outcome. Also check whether a token approval was a separate successful transaction: an approval grants a contract permission to spend up to an allowed amount, but it is not itself the swap.

What if the explorer cannot find my transaction?

First confirm that you selected the same network the wallet used, then check the copied hash for missing or altered characters. A newly broadcast transaction may not appear immediately, and a transaction replaced with the same nonce may no longer be the active one. Check the wallet’s pending activity or another explorer for that network before deciding it never executed.

When is it safe to try the swap again?

Retry after the first transaction is confirmed as failed, or after you establish that no transaction was broadcast. If it succeeded, verify the token balance and transfers instead. If it is pending, wait or use the wallet’s replacement process. For a revert, review its cause first; repeating the same amount and conditions may produce the same failure.