# `PolarExpress.Params.CustomersUpdateCustomerByExternalIdParams`
[🔗](https://github.com/jeffhuen/polar_express/blob/main/lib/polar_express/params/customers_update_customer_by_external_id_params.ex#L2)

Parameters for customers update customer by external id.

# `t`

```elixir
@type t() :: %PolarExpress.Params.CustomersUpdateCustomerByExternalIdParams{}
```

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