Steps to reproduce:

1. Log in to back office.
2. Go to Product catalog / Products.
3. Start creating a new Product.
4. In field 'Code' provide special characters e.g. ##$%##%

Actual result:

See attached screenshot.

Cannot create a new Product when in code field are special characters.

Expected result:

Implemented validation for field Code.

NOTE:

We can implement the same validation as it is already implemented in adding new Product type form (screen: product_type).