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The Invoice Discount Component allows you to add a fixed or percentage discount to an invoice based on Tiers that you configure. Tiers can be specified as an amount (if $100 is charged apply a 5% discount, if $150 is charged apply a discount of 7%, etc.) or as of EngageIP 8.5.25.2 Tiers can be setup based on [glossary_exclude]service[/glossary_exclude] count (volume purchase discounts). There is no limit to the number of Tiers you can configure.
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The Invoice Discount logic is similar to the discounts on user packages. You would use the Invoice Discount Component instead of the Package Discount Component if you needed tiered pricing discounts related to certain thresholds of business per period or if you simply want to provide an overall promotional discount that displays to the customer as a discount. The Invoice Discount Component will also display the discount on the invoice, for package discounts the discount applied is not automatically shown on the invoice (invoice template changes are required to display the package discount detail). Also package discounts are granular (applied per package/service) where as the invoice discount component is account wide/multi-service.
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Discount by Service Count / Volume
As of EngageIP 8.5.25.2 it is possible to discount based on the number of billed services on an account. This permits discounts to be awarded based upon the the volume of services purchased. Volume discounts are compatible with the Bulk Package Component, meaning bulk package quantities configured on an account will be considered when calculating tier thresholds.
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To adjust for a discount that should not have been applied you can add a debit/credit. See the Managing Transactions article for instructions on applying these transactions.