Hi everyone,
Wondering if someone could help me with this: I’m looking to embed a Marketing newsletter subscription box to a blog post. Is there a way to get an embedded link for this? Otherwise, is there any other way that’s possible to add a subscription box to a blog post?
Thank you in advance.
Hersch
Sorry you are facing this issue, it would be my pleasure to help you.
Welcome to the Shopify community! 
Thanks for your good question.
Please share your site URL,
I will check out the issue and provide you a solution here.
Hi Hersch,
Seal Subscriptions an incredibly popular subscriptions app for Shopify stores here. If I understand your correctly, you want to add a link to the subscription product into your newsletter?
Our app has a feature, which allows you to create the so called Quick Checkout Link for your subscription product. You can then add this link to your newsletter and when the customers click on it, they will be taken directly to the checkout with the subscription product in it 
From what you said, I think that this might be exactly what you are looking for.