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The Transfer module is meticulously designed to streamline the movement of assets within, into, and out of the four wallet types available on Cobo Portal. These encompass Custodial Wallets, MPC Wallets, Smart Contract Wallets, and Exchange Wallets. Currently, Cobo Portal supports the following transfer scenarios:
  1. Transfers from Custodial Wallets (Asset Wallets), MPC Wallets (Organization-Controlled Wallets), Smart Contract Wallets (Safe{Wallet}), or Exchange Wallets to external addresses.
  2. Transfers between Custodial Wallets (Asset Wallets), MPC Wallets (Organization-Controlled Wallets), Smart Contract Wallets (Safe{Wallet}), and Exchange Wallets.
  3. Transfers between Main Accounts and Sub Accounts within the same exchange.
Before you initiate a transfer, make sure you meet the withdrawal prerequisites. To make a transfer, log in to Cobo Portal and then click Transfer at the top of the left sidebar. Then, fill in the required information as follows: For transfers from MPC Wallets and Custodial Wallets (Asset Wallets), you can use Fee Station to pay for the gas fee.
Memo/Tag (Optional): The field is only visible when you select a token that requires it. For transfers out of Cobo Portal, it is highly recommended to include a memo/tag for the following chains: XRP, EOS, XLM, IOST, BNB_BNB, ATOM, LUNA, and TON.

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Transaction statuses

After you submit a transfer, the transaction moves through a series of statuses before it is broadcast on-chain. The Pending Approval status often needs clarification, because it can apply for two different reasons:
  • Automated internal checks: The transaction is being evaluated automatically by Cobo’s risk-control and compliance screening systems. No human action is required during this stage.
  • Manual approval: The transaction matched a policy that requires one or more designated approvers to review and approve it.
Because of the first case, you may see Pending Approval even when no approver is required for your transaction - this means the automated internal checks are still running. The transaction proceeds automatically once those checks complete, unless a matched policy also requires manual approval.

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Balance locking

When you create a transfer, Cobo Portal reserves (locks) the spendable balance required for that transaction so the same funds cannot be spent by another transaction while the transfer is in progress.
  • When balance is locked: The spendable balance is locked at the moment the transaction is created.
  • When balance is released: The lock is released when the transaction reaches a final state - both when it completes successfully and when it fails or is rejected.
  • Why multiple addresses can be locked at once: For wallets that hold funds across multiple addresses (for example, UTXO-based chains), a single withdrawal can draw spendable balance from more than one address. The spendable balance on each selected address is locked for the duration of that withdrawal.
Because an in-flight withdrawal reserves spendable balance, trying to spend the same funds again before the first withdrawal settles can produce a Specified Spendable is locked error. Wait until the in-flight transaction reaches a final state, then retry.