When setting up the Xero integration, you will need to select a default Xero account for invoice items, and a default Xero account for payments and the payment method for receiving payments in Xero.
When selecting from the Xero chart of accounts, you may notice that your bank account can not be selected. This is because the account does not have an account code, which is required for the integration.
To fix this, click Accounting, then Chart of accounts.
Find the bank account you want to use in the Splose integration, and click on the bank account name.
Add an available account code and click Save.
Head back to Splose. You will now be able to select the bank account.