How to add custom text at the end of SKU depending on product variation

[Kakha0430]

Hi,

Is there any script or app which can help me add custom text automatically at the end of SKU, depending on variation, so lets say my SKU is 1111 and the product has Size 36, 38 and color is Black and white. so depending on that I want my final SKU to be filled automatically for 36 / Black to "1111-BK-36" and etc. so basically I also need to be able to shorten the name for Color variation, or if that's not possible then I'll just name variation BK for black for example. I think wordpress had this feature but its super tiring to fill out SKUs individually.

Help would be greatly appreciated, thanks!