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In the Company field, select a customer, an individual or legal entity, for whom the invoice is created. Select it from the Companies list.
The Contract field is filled automatically for the selected company with the default contract. If necessary, you can change it by selecting the contract from the Company's Contracts list (to open the list, select Show all in the drop-down list).
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The Warehouse field is required, if the Multiple warehouses option is selected on the Administration > Settings > Purchasing and Warehouses form. In this field, you can select the warehouse from which the items should be shipped. If you need to add items from different warehouses, you can move the Warehouse field from the Main tab as a column to the table on the Inventory tab. For this, use the Settings button on the toolbar (for more information, see Document Toolbar.
The Cell field is available if the Enable Bin Locations option is selected on the Administration > Settings > Purchasing and Warehouses form and if the Cellular option is selected for this particular warehouse. Select the cell in the warehouse structure which stores the items. If you need to add items from different cells, you can move the Cell field to the Inventory tab where it will appear as a table column. For this, use the Settings button on the toolbar (for more information, see Document Toolbar).
The Project field is available if the Project Management functionality is turned on on the Administration > Settings > General Settings form. You can link the invoice with a project from the list of available projects. If the items in this invoice are associated with different projects and you need to specify different projects for different items, you can move the Project field from the Main tab as a column to the table on the Inventory and Services tab. For this, use the Settings button on the toolbar (for more information, see Document Toolbar).
The Order field is filled in automatically if the invoice is based on the customer order. You can link the invoice to a customer order manually; for this, click the arrow button in the field, then click Show all. The list of customer orders appears; only the orders for the same contract are shown in the list. If you need to copy the details from the order to this invoice, click the Fill by Order ( 
) button to the right in the field.
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After filling out the tab, click the Save button to save your work. After filling out all the tabs, click Post to save and post the document without closing it or Post and close to save, post, and close the document.
Use the Generate button to create a document based on this invoice.
For other button descriptions, see Document Toolbar.