Read your payor account, its ledger accounts and balances, and the cost of each payout method.
The payor is your account: the sender of every payout. Read it to find the ledger accounts that fund your payments, their currencies and balances, and the tax jurisdictions enabled for you. Read and set your payment availability period, which decides when unsent payments expire.
You need a ledger account ID before you create a batch. Before you choose which payout methods to allow in a batch, check what each method costs you with the payment methods cost operation.
See Funding and Ledger Accounts, Payment Methods and Costs and Payment Statuses.