Limit of 3 app blocks per target? Why?

Shopify Partner
4 0 2

Hello Shopify folks,


While testing my checkout UI extension app together with other apps, I discovered that only a maximum of 3 app blocks seem to be allowed per dynamic target in checkout pages.

Number of apps a shop wants to use to place a block somewhere in checkout I see increasing. Hey, that's cool and probably what Shopify intended by introducing checkout UI extensions. 


Hence, why this limitation and will this change in future?  

Am I missing something?


Replies 2 (2)

Shopify Staff
2731 299 769

HI Ebbu,


I believe this limitation is intended to prevent any negative performance impacts on the checkout. This may be revised in the future. 

Liam | Developer Advocate @ Shopify 
 - Was my reply helpful? Click Like to let me know! 
 - Was your question answered? Mark it as an Accepted Solution
 - To learn more visit or the Shopify Web Design and Development Blog

Shopify Partner
4 0 2

Thank you Liam, see your point.

I would love to see that being revised in the future and hand the decision about performance vs. functionality over to a merchant.