On 2015-11-09 16:00, 'Korbinian Preisler' via tryton wrote: > On 21.10.2015 15:08, Cédric Krier wrote: > > Cancellation already exists, it is not activate on the posted customer > > invoice (but on supplier) because it is not allowed in every country. > > Of course, a standard module that makes the fine tune to activate it is > > welcomed. > I had a deeper look at the cancelation functionality. A legal > requirement for a cancelation is that you need to inform your customer > about the cancelation. So you need a document to do this. As the report > of the invoice is stored there is currently no way to create such a > cancelation report. But i found maybe a solution for this. See my > comments below.
The cancellation report is simply the invoice report as the state will be showed as canceled (but it requires some tuning because of the report cache, maybe an other report entry). > > As already stated having invoice/credit note distinction prevents to put > > in the same document both kind of lines. And in case of such mixed > > document it is name is not so trivial to determine. But we can keep the > > numbering distinction using the total sign. > > About the cancelation sub-type, I don't think we have to create a new > > document (record in invoice table) for that. The current design is to > > create a cancelation move linked to the invoice. If a specific number is > > needed for customer cancelation, I guess the module (I talk above) could > > add an other field to hold the number and the invoice report could be > > customized to use this number. > After some thoughts i agree that we do not need the cancelation sub-type > but my explanation is a little bit different to Cedrics one. > I think we already have the cancelation sub-type. I think that we just > use the currency credit note sub-type in a wrong way because it should > be the cancelation instead of the tax-law credit-note. > > If we do like this many things will be possible or some others should be > done: > * Mixed documents will be possible > * The credit note like it is defined by tax law can be implemented with > a boolean field that marks the "self-billing" and that will switch the > layout of the report. As i noted in my last post there is no other > difference compared to a normal invoice. I don't see the need of such field because cancellation is already implemented. > * The Wizard 'Credit Invoice' should be renamed to 'Cancel Invoice' and > should multiply the quantities of the invoice lines with -1 > * A constraint should be implemented that the total mount of an invoice > must be positive and the total amount of an cancelation must be negative I don't see the point of having a constraint. It is not needed to work correctly if the "type" is deducted from the sign of the amount. -- Cédric Krier - B2CK SPRL Email/Jabber: [email protected] Tel: +32 472 54 46 59 Website: http://www.b2ck.com/
