Magento2 Change Sku of product with custom option

Question

I have simple product with SKU : AAA

and has custom options Sku
Option 1

A1A1A1
A2A2A2

Option 2

B1B1B1
B2B2B2

On Product page SKU is showing AAA is fine.
Now if customer Add to cart and chosse first option in both sectios for this product it's SKu Bocomes AAA-A1A1A1-B1B1B1 in cart and Order

I want to change it's saperator from - to +
so result SKU becomes AAA+A1A1A1+B1B1B1
How can ido it?

Answer 1

Please check with below which have event for product save after, it means when we save products than get sku and than set sku.

Get product from save event observer - Magento 2

I hope, its working fine for you. :)