A cryptocurrency or token ticker symbol.

The wallet ID.

A sequenceId is a unique and arbitrary wallet identifier applied to transfers and transactions at creation. It is optional but highly recommended. With a sequenceId you can easily reference transfers and transactions—for example, to safely retry sending. Because the system only confirms one send request per sequenceId (and fails all subsequent attempts), you can retry sending without the risk of double spending. The sequenceId is only visible to users on the wallet and is not shared publicly.