/visma-net-erp/help/supplier-ledger/process-purchase-invoices/enter-an-invoice-in-the-base-currency section 2026-02-19T17:09:06+01:00 # Enter an invoice in the base currency 1. Go to the [Purchase invoices (AP301000)](/visma-net-erp/help/supplier-ledger/supplier-ledger-windows/purchase-invoices-ap301000/) window. 1. Click . 1. In the top part, in the **Type** field, select **Invoice**. 1. In the **Date** field, the default is set to the current date, but you have the option to modify it. The **Post period** field will be automatically populated based on the document date you have selected. 1. In the **Supplier** field, choose the supplier who issued the invoice. The supplier's default location appears in the **Location** field. You have the option to select a different location. 1. In the **Supplier** field, choose the supplier who issued the invoice. The supplier's default location appears in the **Location** field. You have the option to select a different location. 1. In the **Supplier ref.** field, enter the reference number of the supplier invoice the invoice is based on. This setting is required if the **Require supplier reference** check box is selected in the [Supplier ledger preferences (AP101000)](/visma-net-erp/help/supplier-ledger/supplier-ledger-windows/supplier-ledger-preferences-ap101000/) window; otherwise, it is optional. 1. Make sure the base currency is shown in the **Currency** text field. 1. Optional: Add a description of the invoice. 1. On the **Document details** tab, enter the details of the invoice. An invoice must include at least one line. To add each detail row to the invoice, follow the steps below: 1. In the table toolbar of the **Document details** tab, click . 1. In the **Item ID** column, specify the line item by its item ID. If you select a stock item, you need to link it to a purchase receipt line, see [Link stock item to a purchase receipt line on purchase invoice](/visma-net-erp/to-be-deleted/online-help/p2p/ap/ap301000-link-item-purchase-receipt-task/). 1. Optional: In the **Transaction descr.** column, enter a description of the transaction. 1. In the **Quantity** column, enter the quantity of the line item purchased from the supplier. 1. Optional: Enter the unit of measure for the item in the **UoM** column. The default is the UoM defined to the product. 1. In the **Unit cost** column, enter the cost per specified unit. The default is the unit cost defined to the product. 1. If necessary, in the **Cost** column, manually enter the total amount of the specified quantity of the line item. The column is filled in by the system if you have specified the quantity and the unit cost. 1. Make sure the account shown in the **Account** column is correct; by default, the system uses the expense account associated with the supplier location, but you can select another account. The invoice is automatically posted to this account. 1. Make sure the subaccount shown in the **Subaccount** column is correct; by default, it is generated in accordance with the rule in the **Combine expense sub. from** field in the [Supplier ledger preferences (AP101000)](/visma-net-erp/help/supplier-ledger/supplier-ledger-windows/supplier-ledger-preferences-ap101000/) window. You can manually change it if necessary. 1. Optional: In the **Deferral code** column, select a deferral code if the expenses related to the purchased item or service must be recognised in future periods. 1. Optional: Attach a scanned image of the supplier original document to this invoice. To do this, click **Files** on the window title bar. 1. To save the invoice with the **On hold** status, select the **Hold** check box. 1. To save the invoice with the **Balanced** status, make sure the **Hold** check box is cleared. 1. Click .