Suggested setup
GMGN's guidance for copy trading is auto slippage, Anti-MEV off to favour speed, and a priority fee of 0.002 to 0.006 SOL. Anti-MEV needs a priority fee of at least 0.002 SOL, and if you keep timing out with it on, switch to Reduced or turn it off. Keep at least 0.05 SOL in the wallet for gas.
Slippage
GMGN's fee guide suggests 30% to 35% for automated orders and 50% or more for new, popular tokens. Failures that reach the chain still consume gas. See what slippage is.
Filters that decide what is copied
Market cap and liquidity limits, token age, minimum and maximum copy amounts, a single-coin position increase setting (0 means no repeat buys), a platform filter and a blacklist. Check the strategy's Filter List for the reason behind a missed copy.
Behaviours to know
- After 3 consecutive failed copy trades GMGN pauses the task and does not restart it by itself.
- With take profit and stop loss on, the copied wallet's sells are not followed.
- Lightning mode can monitor selling before buying, which breaks auto-sell.
- Settings do not carry over between chains.
Troubleshooting is in GMGN copy trade not working. See GMGN.