Serial & LOT (batch) numbers in Point of Sale (POS)

September 27, 2021


New product page

In ERPAG, in-person salespart of the application are made through the POS (Point of sale). ERPAG POS exists in two variants, Desktop / Mobile App.

The Desktop variant is specially adapted to a classic computer, regardless of whether it is entered via touch screen, barcode reader, or search through the keyboard.

New receipt

The Mobile App variant is customized for input on mobile devices. For example, we can use the device’s camera to scan the barcode, or if the device has an integrated thermal printer, we can also print a POS receipt.

Point of sale mobile app

Whichever version you use, if you have serial or LOT(Batch) number tracking – in POS part of ERPAG it is fully supported. ie. at the time of sale / check-out, it will be possible to enter the Serial or LOT number for each sold item.

More information about Serial / LOT numbers you can find on this blog:

Serial numbers in Mobile POS

With the Mobile App (iOS, Android) when the item that has tracking is inserted or scanned, it will be immediately added to the “Cart”, and the entry will be enabled later.


The Serial number is entered manually via soft-keyboard, via camera by scanning the Barcode(marked in red in the picture above), or by selecting from the list of available Serial numbers(marked in the blue picture above).

By changing “Quantity processed” will automatically open more fields for entering numbers.

Set quantity

By tapping the button with the magnifying glass icon, a list with available Serial numbers will be opened. The selection will insert the selected number in the text field.

Cart serial number

Entered serial numbers will be displayed as a comma-separated list (,) in a separate line.

Serial numbers in desktop POS

Regardless of which input method is included (Touch, EAN / UPC, Search), a serial number must be entered immediately after selecting the item.

New receipt

Note: In order for an item to be selected, the correct Serial number must be entered.

LOT (batch) numbers in Mobile POS

Product batch number

Whether you create LOT(Batch) numbers (if you are manufacturer), or receive an item from a supplier; you must specify which LOT (batch) you sold when selling.

POS cart quantity

The entry itself is similar to entering Serial numbers, but the main difference is quantity, because Serial numbers quantity is always one piece. ie. one piece is always one serial number. With LOT (batch) numbers, multiple pieces can have the same number. Therefore it is possible to add a new row to enter the quantity and LOT (batch) number, (button “more” on the picture above, marked with a green arrow).

Cart LOT number

The list of entered LOT(batch) numbers is also displayed on the item as with Serial numbers.

LOT (batch) numbers in desktop POS

The entry is identical as with Serial numbers.

New receipt LOT number

Note: If you have both Serial and LOT tracking on the item, the data entry will be identical as if you had only Serial number tracking. ERPAG will automatically fill in LOT (Batch) numbers depending on the Serial number.

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