# Customize the Text & Strings in the Freemius WordPress SDK

All the SDK's text and strings are customizable. Every string has its own unique key which you can use to override it.

For example, You can use the `fs_override_i18n()` function to customize the button labels:

### Using plugin slug[​](#using-plugin-slug "Direct link to Using plugin slug")

```
fs_override_i18n( array(

    'opt-in-connect' => __( "Yes - I'm in!", '{your-text_domain}' ),

    'skip'           => __( 'Not today', '{your-text_domain}' ),

), '{your_slug}' );
```

### Using the `Freemius` class[​](#using-the-freemius-class "Direct link to using-the-freemius-class")

`override_i18n()` is a public method of the `Freemius` class, so you can use it as following:

For example to customize the button labels:

```
// Replace `my_fs()` with your actual Freemius instance name.

my_fs()->override_i18n( array(

    'opt-in-connect' => __( "Yes - I'm in!", '{your-text_domain}' ),

    'skip'           => __( 'Not today', '{your-text_domain}' ),

) );
```

Or control the in-dashboard trial promotion in the Freemius WordPress SDK

```
my_fs()->override_i18n(

  array(

    'hey'                                        => 'Hey',

    'trial-x-promotion-message'                  => 'Thank you so much for using %s!',

    'already-opted-in-to-product-usage-tracking' => 'How do you like %s so far? Test all our %s premium features with a %d-day free trial.',

    'start-free-trial'                           => 'Start free trial',

    // Trial with a payment method required.

    'no-commitment-for-x-days'                   => 'No commitment for %s days - cancel anytime!',

    // Trial without a payment method.

    'no-cc-required'                             => 'No credit card required',

  )

);
```