@Eion - thanks for the feedback. I've updated the Invoices endpoint docs to make the description of the TaxAmount and LineAmount elements clearer.

@Anon - Discounts are only supported on ACCREC invoices via the Xero APi. DIscounts on credit notes are not supported via the Xero app or API at this time. Consider suggesting this functionality on our app feature request site - https://community.xero.com/business/topic/23/

Can you update the docs to say whether this is supported for ACCRECCREDIT's as well as update the TaxAmount and LineAmount docs for whether this is before or after the discount % is applied

You mention that this is supported on ACCREC. Is this also supported on ACCRECCREDIT ?

I have a project to complete by Feb 2014 any chance on defining available soon?
Or an indication that it won't be available by then.

Thanks

Yes please! Our application creates invoices and as long as it supports discounts internally, we must export this information via the API. Suggested workaround is definitely just a hack...

What does "planned" actually mean? Can you share the "plan"? Thanks!

Yes please! We create invoices via the API and this is a requirement. The above workaround of adding negative line amounts works but its a hack.

API has to reflect the application chaps, otherwise us Devs will be endlessly searching forums to find out what's supported and what isn't.

Yes please. We generate invoices dynamically via the API. This would be a must have!

+1 - This is definitely a must have for me. Staff will have to work around the issue until it is implemented.

Thanks for the suggestion, but adding an additional line is confusing for customers, so we are going to have to have staff update the line discount manually until this API fix is implemented.

The discount is itself a work-around for the inability to specify an item price with 4 decimal places, so your other option would be to fix that limitation :-)

This is a must! Seems like a no-brainer to me. I understand the need to prioritise development and new features so this is my effort to bump this up the list a little.

Agreed, this is a must!

+1 for this

This is such a common requirement and standard practice it's hard to believe that this wasn't included in a much earlier release before now!

We really need this, so please do this. Thanks.

We are currently designing a point of sale system for small businesses which can be connected directly with Xero. Currently we are needing to design a work around which adjusts the unit cost when creating the line item. Ideally we would like the unit cost to remain the same and simply be able to apply a discount to the line item to represent a line item discount.

do it plz thanks

do it pls! thanks