Invoice Rules

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Why would you want to use this feature?

Example 1:

You sell car batteries and by selling a car battery the client will get a discount for his/her used battery that they are returning. (used battery needs to be loaded as a trade-in item. (

When selling the new battery, Smart iT automatically loads the used battery item.


Example 2:

E.g. together with selling a tyre you must also sell a valve

When selling the tyres, Smart iT loads the valves automatically.


Steps on how to do the setup:


Total Discount %
Invoice Rules

Invoice Rules


These rules also apply to quotations, job cards and sales orders