For standard ERC-20 and TRC-20 tokens, Deposit/Source wallets must complete a one-time approval transaction, authorizing a Gas/Sponsor wallet (which is also a Utila wallet) to move specific tokens. This setup requires an initial gas (token) injection, but after that, the Deposit Wallet no longer needs additional gas.
Go to Vault Settings > Transaction Policy. Click Manage policy, and then Add rule.
For Rule type, select EVM approval.
Select the token type you are transferring to the gas wallet.
Select the gas wallet you wish to grant approval to.
If the rule action requires approval, select the user group and how many users need to approve the rule.
Click Create rule and then Save changes. The rule goes to approval. When approved, you can make a sponsored transfer.
