Send cdkey for purchase of specific combination in PrestaShop

Hello, sir. 

i am using your plugin to sell license codes in my prestashop.
When user bought my product, email was not send. 
How it is. If I have combinations of product, must be selected one? or will not?

How module identify purchase of cdkey product (if product has combinations)

Hello

How it is. If I have combinations of product, must be selected one? or will not?

You can set it for product, or for specific combination.

So, if product has combinations, you can:

- set it for "product" - no matter what combination will be purchased - customer will receive a cdkey

- set it for specific combination of product - then module will grant cdkey only if customer will purchase this specific combination

When user bought my product, email was not send. 

Is the cdkey associated with customer account ?
If so - this probably means that there is not translation of email for "sk" language.

you can define translations for this language under:

prestashop 1.6: localization > translations > email translations
prestashop 1.7: internation > translations > email translations