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Stock Transactions

This guide will help you enter warehouse movements and transactions with stock items and understand cost price calculation in Merit Aktiva.

Updated over 2 months ago

Entering Initial Data

Via warehouse movements, you can enter:

  • Opening balances for articles

  • Stock intake when goods are not purchased with a purchase invoice

  • Finished goods intake

  • Raw material consumption

  • Inventory differences

  • Internal use (outgoing movement)

💡 Menu: “Stock → Stock Transactions → New Stock Transaction”

📌 On an inventory movement line, the quantity cannot be negative. The quantity is always entered as a positive number, and the direction of the goods movement is determined by the movement type:

  • Expense – the system deducts the item quantity from stock.

  • Incoming – the system brings the item quantity into stock.

Purchase Transactions

Purchases of stock items are entered via a purchase invoice:

Menu: “Purchase → Bills”

On the article line, select article type “Stock Item (SI)”

💡 When you use a “Stock Item” type on a purchase invoice → the item is immediately recorded as warehouse income.

Sales Transactions

Sales of stock items are entered via a sales invoice:

Menu: “Sales → Invoices”

On the article line, select article type “Stock Item (SI)”

💡 When you use a “Stock Item” type on a sales invoice → the system automatically records the item as warehouse expense.

Cost Price and FIFO Method

The cost of stock items is calculated using the FIFO (First In, First Out) method.

To ensure accurate warehouse accounting:

  • Create a separate article for each stock item

  • Be sure to set the article type as “Stock Item”

  • Enter the correct quantities in all transactions

💡FIFO (First In, First Out) is a stock accounting principle that assumes:

👉 Items that arrive first in the warehouse will also be the first to leave.

🧾 Example:

If you purchase the same product in two batches:

    1. January: 10 pcs at €5/each

    1. January: 10 pcs at €6/each

And you sell 15 pcs, then:

  • According to FIFO, the first 10 pcs are sold at €5

  • The remaining 5 pcs are sold at €6

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