Describe the bug

the name and first name variables are not interpreted in the logs email

Expected behavior

The varibles should be interpreted

Steps to Reproduce

Steps to reproduce the behavior:

PS => The SMTP param

The calculator should always return a BigDecimal, but that's not always the case.

For example the flat_rate calculator return 0 as Integer on the else branch.

If the calculator returns a type other than BigDecimal a warning will be issued by the adjustment action for the promotions,
for example

Describe the bug
When clicking on "Login" after clicking on "Add to cart", post logging in, the user is redirected to the home page
To Reproduce
Steps to reproduce the behavior:

1. Go to any product (without signing in0
2. Click on "Add to Cart" and then login by clicking the button on the prompt
3. Login with your credentials
4. You will then be redirected to the login page

**Ex

The package creation/splitting is heavily dependant on zones. Prevent deletion of the last available zone.