How can I manage interchangeable stock for two different product designs?

Topic summary

Managing shared inventory across two separate product pages for interchangeable designs. One product has two design options (same color/size), with a single stock pool of 40 units (e.g., Product A and Product B, White XL).

The seller doesn’t want to split inventory (20/20) because demand varies by design, and doesn’t want to consolidate into one product page with design options. Listing 40 units on both pages would falsely show 80 units.

Questions raised: Is manual stock adjustment the only approach? Is there a way to link or sync inventory between two distinct products so both draw from the same stock pool?

“Interchangeable stock” here means a single inventory pool that can be sold under either design, depending on customer choice.

Latest update: Another participant asks if a solution was found for a similar case (mechanical keyboard switches). No answers or tools mentioned; no resolution yet. Discussion remains open with the key issue of cross-product inventory synchronization unanswered.

Summarized with AI on February 1. AI used: gpt-5.

Hello!

I am selling a product that is customisable same colour, same size but two different design options.

Example: Product A and Product B White XL same stock but different designs total 40 Units.

Both have their own seperate product pages.

I don’t want to half the stock and enter it as Product A = 20units Product B =20units - because the stock is interchangeable depending on what the customer want as the design. If product A sells out in white XL I still have 20 stock left over which i’ve entered in product B.

Will I have to just adjust the stock and add more quantity on product A?

And if I add 40 in stock on product A and 40 in stock on product B that means my inventory is 80units but I don’t have that.

I am also avoiding setting it up on one product page with two design options.

I hope this makes sense and if there’s a possible way around it.

Thankyou!

Hey, did you find a solution to this problem? I want to sell mechanial keyboard switches and trying to figure it as well hahah