Modules > Maintenance and settings > Invoicing > Accounting

On the tabs below you can enter the settings for linking with the Asperion API:

API settings

Choose edit and "Test API login".

The Asperion login screen will be shown in a browser.

After logging in, Asperion will ask permission to connect to TimeWriter; choose "Yes, Allow".

After a successful login to Asperion and permission to connect, return to TimeWriter.

Then press continue.

Administration

Select the Asperion administration, the Asperion product, VAT code, debtor kind and payment condition to be used for invoicing from TimeWriter.

Update customers

On this tab TimeWriter customers can be updated with, linked to and imported from Asperion customer data.

Supplies

The option 'Supplies' of module 'Tasks' can be used.

In the module Invoicing | Invoice you can find the next buttons:

The buttons above the Orders grid have the following functions:

Button	Function
	Add a new order (not based on hour bookings).
	Edit the order. Order lines can also be added, changed or deleted here.
	Delete the complete order(s) and all order lines of the selected order(s).
	For hours and task to invoice, orders will be generated first, see: Generate orders.
	Print the specification report (as set at Maintenance and settings \| Invoicing \| Invoicing) for the selected order.
	Click to print a concept invoice to a pdf and see how the invoice will look like. Note: the final invoice should be created with Asperion.
	Merge orders form the same customer into one order.
	If the Order tab page is selected there is a Create invoice button. Click here to create the invoice(s) of the selected order(s). The orders will be sent to Asperion and converted to Asperion draft sales invoices. After this step the orders are moved to the tab page Invoices. Note: At first the Invoice column will contain the Asperion draft sales invoice id.

With the button KnopUitvouwen an order can be expanded. The order lines are then shown below the order.

All the invoices are visible on the tab page Invoices.

The buttons above the Invoices grid have the following functions:

Button	Function
	Delete the complete invoice. Note: deleted invoice numbers are not used again and the invoice will not be deleted in Asperion.
	Print the invoice specification report (as set at Maintenance and settings \| Invoicing \| Invoicing) for the selected invoice.
	Synchronize invoice numbers with Asperion. After invoicing to Asperion in Asperion draft sales invoices are created which will later become actual invoices.

With the button KnopUitvouwen an invoice can be expanded. The invoice lines are then shown below the invoice.