Create an installment advance. An installment advance is a transfer of one or more installments from future cycles to the present cycle. For more information, refer to Manage installments on the customer statement.

Notes:

• If you need to update the principal amount in advance, use the Create installment advancement endpoint.

• This endpoint requires an account token - an access token encoded with a Pismo account ID. Tokens can expire quickly, which can result in a 401 Unauthorized message.