General
5 questions
Can a memo or destination tag expire?
Usually, the identifier itself does not expire like a password, but exchanges may change deposit infrastructure or assign new deposit details. Users should always generate fresh deposit instructions before sending funds.
Can the same memo be used for multiple deposits?
Sometimes yes, if the exchange continues assigning the same memo to your account. However, users should never assume an old memo is still valid without checking the current deposit page.
Are memo and destination tag mistakes visible on a block explorer?
Often yes. Depending on the blockchain, the transaction record may show whether a memo, tag, or similar identifier was included. This can help users confirm exactly what was submitted.
Can hardware wallets store exchange memos with saved addresses?
Some wallet applications allow additional transaction information or saved recipient details, but support varies. Users should verify both the wallet address and required memo manually before every exchange deposit.
Can an exchange change my memo or destination tag later?
Yes, exchanges can change deposit infrastructure or account-routing information. Even if you have successfully used a memo before, always check the latest deposit instructions before sending another transaction.