EasyScan can match a product using the leading digits of a price- or weight-embedded barcode. It does not use this setting to calculate a price or weight from the remaining digits.
Open Settings → General → Price/Weight embedded barcode support.
Enable PLU lookup.
Select the lookup length: 5 digits (default), 6 digits, or 7 digits.
Save and test a barcode from your scale.
EasyScan uses the first selected number of characters for lookup. For example, with a 5-digit length, 1234598765432 is looked up as 12345. Store the matching product identifier in Shopify and ensure your scale uses a compatible prefix layout.
There is no arbitrary prefix-removal or scale-template parser in this setting. If your item code does not occupy those leading digits, send support a sample barcode and the product identifier you expect it to match before relying on the workflow.