How to add a pop-up for reel spooling options on my online fishing store?

Topic summary

Goal: Offer a post–add-to-cart pop-up on a Shopify store to let customers select fishing line types for reel spooling, instead of relying on checkout comments. A competitor provides this feature; the store owner asks if it’s feasible in Shopify and seeks implementation guidance.

Side issue: Confusion over the store URL. One participant reported an access problem and asked to verify the link; the owner clarified the correct URL is themightyfish.com (TheMightyFish.com) and suggested the user might have added an extra period. Screenshots were shared showing an access error, but the site worked for the owner.

Current status: No concrete solution or steps for implementing the pop-up were provided. No apps, theme customizations, or code approaches were discussed. The thread remains unresolved, with a follow-up asking whether the issue was solved but no confirmation or outcome posted.

Summarized with AI on February 22. AI used: gpt-5.

Hey hey! Our online store sells tons of fishing gear and I get a ton of orders for fishing reels. When a customer buys a reel, they often buy the line separately and then tack on spooling instructions in the comments (while checking out). I was wondering if there were a way to have a pop up come up after they add the reel to their cart (itll have different line types to choose from). I see that one of our competitors has this option but was wondering if it is possible with Shopify?

themightyfish.com is our website. Thanks in advance

You might want to check your website url and confirm that it’s correct

The URL is TheMightyFish.com

Dunno why but i keep getting this

Are you adding an extra period to the end? I just tried and it worked fine for me.

Hi Matt, sorry i’ve been unavailable here for a while, have you been able to solve the issue?