About this Barcode...
The M+S 7 barcode is an EAN 8 barcode modified by Marks & Spencer's, for use on own-brand products sold in their stores.
To make the M+S 7 barcode, the initial “0” is removed and the extra letters “M” and “S” are added to the human readable characters.
This means that the human readable characters contain seven digits plus the “M” and “S” letters.
Note: This doesn't affect the data encoded in the barcode (it
still encodes eight digits), so you should enter eight digits when creating a M+S 7
barcode.
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