# `Stripe.Params.SetupIntentUpdateParams.PaymentMethodOptions.SepaDebit.MandateOptions`
[🔗](https://github.com/jeffhuen/tiger_stripe/blob/main/lib/stripe/params/setup_intent_update_params.ex#L918)

Nested parameters.

# `t`

```elixir
@type t() ::
  %Stripe.Params.SetupIntentUpdateParams.PaymentMethodOptions.SepaDebit.MandateOptions{
    reference_prefix: map() | nil
  }
```

* `reference_prefix` - Prefix used to generate the Mandate reference. Must be at most 12 characters long. Must consist of only uppercase letters, numbers, spaces, or the following special characters: '/', '_', '-', '&', '.'. Cannot begin with 'STRIPE'.

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*Consult [api-reference.md](api-reference.md) for complete listing*
