.. _changes:

TODO:
- refactor _add functions to use _import functions
- write tests that check error handling for corrupt files. (e.g. references to tax rates, project and cost center that failed to load)
- it is possible a referenced tax rate is loaded after an invoice is loaded. This means all invoices need to be recalculated after file load. (try to write a test for this).
- invoice sequential number should be modifyable & checked for uniqueness (for external invoices being imported)
- allow cost centers to be deleted that have 0 references
- Send invoice by email
- create invoice from PDF file
- create invoice from image of receipt
- create invoice from UBL file
- read invoice from Holodeck instance
- send invoice via Holodeck instance
- View invoice history for contacts
- View invoice history for projects 
- Create quarterly tax reports for NL.
- validate data within administration on save to make sure it is valid for transmissions. (e.g. rules of https://docs.peppol.eu/poacc/billing/3.0/syntax/ubl-invoice/cac-AccountingSupplierParty/cac-Party/cbc-EndpointID/)
- View local business number / vat number naming on contact form. e.g. when country is austria: "Österreichische Umsatzsteuer-Identifikationsnummer"
- ICP reports

v0.1 (master)

- Create/read/update contacts
- Create/read/update projects
- Create/read/update invoices & expenses
- Create/read/update VAT rates
- Create/read/update cost centers
- Generate default VAT rates
- Generate default cost centers
- Reading & writing administration files
- Archive invoices in Peppol BIS 3.0 format
- Quarterly income statement reports