Hi @onyx_au ,
Newsletter Language for Already Subscribed users you need to add following code:
Add following script on this file: SALES CHANNELS > Online Store > Themes > Actions > Edit code > Assets > global.js
var live_url = window.location.href;
var result = live_url.includes('form_type=customer');
var input_val = document.querySelector('#NewsletterForm--footer').value.length;
if(result && input_val != 0){
const add_ele = document.createElement("h3");
add_ele.innerText = "You have already subscribed!";
document.querySelector('.newsletter-form__field-wrapper').appendChild(add_ele);
add_ele.classList.add('newsletter_already_subscribe','newsletter-form__message','form__message');
}
Add following CSS code on this file: SALES CHANNELS > Online Store > Themes > Actions > Edit code > Assets > component-newsletter.css
.newsletter_already_subscribe{
color: red;
}
How it will looks like after adding above code in your Shopify Store:
Thank you.