Setting up a "builder" with multiple products depending on characteristics (Tags/Metafields)

Topic summary

Seeking a Shopify “builder” to let customers combine two products into a custom bundle. Product A is standalone; Product B has color choices and 40+ sizes (size not as a variant). After selecting A, the shopper should be filtered to compatible B items using characteristics (tags/metafields), then see both items bundled in cart. Flow should also work in reverse (start from B to see compatible A). Built on the Allure theme; looking for an app or native theme feature.

Tags/metafields here refer to product attributes used for matching/filtering between A and B.

Responses so far:

  • One reply says the request is very complicated, implying no simple out‑of‑the‑box solution.
  • Another participant asks for updates and shares a similar need: a multi‑product builder that outputs a package/plan. They currently use Kickflip for single‑product customization but need multiple products shown.

No app/theme recommendations or implementation steps have been provided. Discussion remains open and unresolved.

Summarized with AI on December 25. AI used: gpt-5.

Was wondering how far you have gotten with this? I am looking for a builder that allows multiple products to then go into a package plan as well. I currently use Kickflip for one off products but need to find a way to have multiple products shown.