ERC‑20 approvals & allowances

Unofficial educational resource • For official app and docs: sushi.com • docs

ERC‑20 approvals

Approvals grant a smart contract permission to spend a token from your wallet.

Best practices

• Prefer limited approvals when possible.
• Revoke unused allowances periodically.
• Verify spender addresses shown in your wallet.

Practical tips

• Keep track of what you approved and why.
• Avoid signing approvals from unknown sites.