TL;DR: A swap preview should tell you what leaves your wallet, what you expect to receive and the worst output you are agreeing to accept.
Sources checked September 12, 2026. Educational information, not financial advice.
Read the trade as a sentence
Try saying: “I am spending this amount of asset A on this network to receive asset B at this address.” If you cannot finish that sentence, there is more to check before signing.
This guide explains the fields to look for. It is not a funded transaction test or a screenshot walkthrough of the current pons interface. Availability and screen labels can differ.
The fields that deserve your attention
- Spend asset: identify the exact token and amount leaving your wallet.
- Receive asset: check its contract, not just its symbol.
- Expected output: the quote, before subsequent market changes.
- Minimum received: the lower output bound you authorize for that swap.
- Fees: distinguish network gas from trading charges.
Price impact and slippage
Price impact is how your own order changes the market’s price. Slippage describes the difference between the expected and actual execution price. A larger slippage tolerance permits more variation; it does not improve the original quote. Uniswap’s explanation is a useful reference for these terms.
As a hypothetical calculation, a 1% output tolerance on a 100-token quote corresponds to 99 tokens, assuming the interface applies it directly to that quote. Read the actual minimum displayed instead of assuming every app calculates or presents it identically.
Approvals are permissions
A token approval authorizes a contract to spend a token within an allowance. It is a different permission from the swap itself. Read the spender and limit, especially when a wallet presents more than one request. See Uniswap’s approvals and swap FAQ.
Frequently asked questions
Should I keep increasing slippage when a trade fails?
No. First identify the cause. A wider tolerance changes what you accept and may not address the failure.
Read next
Research the token behind the quote and review how the pairing asset affects value.