Checkout App Blocks: Why Can't I Save Them? (Shopify Plus Explained)
Understanding Checkout App Blocks and Shopify Plus
Ever tried adding those cool app blocks to your Shopify checkout, only to find the 'Save' button mocking you with its inaction? You're not alone! It's a common head-scratcher, and recently, a user named hareshreconvert brought this very issue to the Shopify Community. Let's break down what's going on, drawing from the collective wisdom shared in the thread.
The Core Issue: Plan Limitations
The short answer, echoed by Dan-From-Ryviu and Serhii1007, is that checkout app blocks are primarily a Shopify Plus feature. That's right, you typically need to be on the Plus plan to fully utilize and save these extensions. Hareshreconvert discovered this the hard way when their "advanced plan" development store, despite having checkout extensibility enabled, wouldn't save the added blocks. The error message, though unhelpfully silent in the UI, pointed to a plan incompatibility: "This shop’s plan does not support this extension target."
Here's a snippet of the error hareshreconvert encountered:

Why the Confusion?
So why does Shopify even *show* you the option to add these blocks if you can't save them? Good question! Hareshreconvert rightfully pointed out that this is misleading. It creates a frustrating user experience where you spend time configuring something that ultimately won't stick.
Hareshreconvert shared a screenshot showing the ability to add the blocks:

Development Stores and Checkout Extensibility
The thread also touches upon development stores. While you can create a development store with checkout extensibility enabled, that alone isn't enough to bypass the Shopify Plus requirement for *saving* those checkout app blocks. Serhii1007 clarified that a development store, even with Checkout Extensibility enabled, isn't sufficient. It needs to be an active Shopify Plus store.
What Can You Do About It?
Here's a breakdown of potential solutions and considerations:
- Upgrade to Shopify Plus: If checkout customization is crucial for your business and justifies the cost, upgrading to Shopify Plus is the most direct solution.
- Re-evaluate Your Needs: Are there alternative ways to achieve your desired checkout functionality without relying on app blocks? Sometimes, simpler solutions exist.
- Provide Feedback to Shopify: Hareshreconvert's point about clearer error messaging is spot-on. Let Shopify know that the current experience is confusing. The more merchants voice this concern, the more likely they are to address it.
Unexpected Access?
Interestingly, Hareshreconvert also mentioned seeing checkout app blocks on a Basic plan, which is definitely unusual. This could be a temporary glitch or perhaps an A/B test by Shopify. It highlights the ever-changing nature of the platform and the importance of staying informed.

Ultimately, the key takeaway is understanding the Shopify Plus requirement for checkout app blocks. While it can be frustrating to encounter limitations, knowing the reason behind them empowers you to make informed decisions for your store. Hopefully, Shopify will improve the user experience by providing clearer guidance within the platform itself. In the meantime, keep an eye on the Shopify Community for updates and shared experiences – you're not alone in navigating these waters!