Kickflip ‑ Customize Products

We've been using this app to set up a custom made clothing item. The whole process has taken weeks a lot of cash invested in 3D models. That makes the whole limitation I'm about the describe even more frustrating. 

When products are created as variations they are SKU-less. That means if your using an IMS or shipping app to process orders after checkout (one that requires a SKU like many do) you're not going to have much luck. Lesser custom apps often give you options. Either replicate the source SKU for each variant or even add numbers sequentially. We use a few of them successfully already. These small but essential function really show when an app that has considered the backend needs of merchants. Kickflip has a heavy focus on front end UI and that's great since it's key for the product, but the backend is not really suitable for any business of scale.  The response from support for this issue was "this is eye opening and we appreciate it. However, unfortunately, it is not possible to do this." Well...thanks.

We're currently unsure if, even after our investment we can make this app worth for us logistically. I suspect we'll try it and manually link products to orders in the short term but it's very disappointing when a simple code change to variant generation would have solved this. 5 stars for ambition. 2 for implementation on Shopify. 

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Response to Kickflip's response: We want to be clear this is NOT feedback on variants linked to inventory level. All our SKUs are made to order anyway. This is simply the manner with which new variants created in Shopify by the app have no SKU given to them when they hit the checkout. This is a simple API/App fix (other apps can generate this kind of variants) and not a complex feature we're discussing here. This is the second time your team haven't quite understood the issue we've raised so perhaps we're not being clear enough. However, it seems based on your response that nothing is in the pipeline.

I can't seem to use the app as I need a login- which I don't have and don't have the option to obtain. I tried going to their website and that just brings me back to this page--

I want to love this app but it's missing so much functionality that I can't use it. Since it replaces the product page, there's no place for a description, I can't customize the template to include important info or complementary products. There is nowhere to display reviews on the product page, etc. If this could be embedded in the product page or a pop up that opens when the customer clicks a "customize this" button it would be pretty brilliant.