Operators are used to write conditions.

• When using only &-operators in an expression, all expressions must be true for the entire expression to be true.
  Example:
  tocountry = "SE" & fromcountry = "SE"
  
  

• When using only |-operators in an expression at least one of the expressions must be true for the entire expression to be true.
  Example:
  tocountry = "SE" | tocountry = "DK" | tocountry = "FI"
  
  
  
• Always use excluding conditions in for example, a price list. Otherwise it is the order that decides.
  Example:
  cartprice >= 500.0
  cartprice < 500.0
  
  
  
• Use parentheses to decide in which order expressions should be evaluated to render the expected result.
  Example:
  weight <=20.0 & tocountry = "SE" | tocountry = "DK"
  results in
  weight = 40.0 and tocountry=DK is true
  weight = 10.0 and tocountry=DK is true
  while
  weight <=20.0 & (tocountry = "SE" | tocountry = "DK")
  results in
  weight = 40.0 and tocountry=DK is false
  weight = 10.0 and tocountry=DK is true
  
  
• Instead of creating new parameters or having to write long and complicated expressions you can use ! and != to invert boolean expressions.
  Example:
  !B2B is true if B2B is false
  tocountry != "SE" is true if tocountry is not SE
  
  
  
• Use condition lists to evaluate against a large amount of values, for example, zip codes.
  Example:
  tozipcode ? "zipcodes_in_gbg_sthlm"