Uniqueness of barcodes

The length of the barcode in the system is limited to 13 characters if you open the history, you can see that a different barcode was loaded than it is written in the product https://mariemur.crm-onebox.com/admin/shop/products/30661/history/?userid=&systemchange=1&filter2_key=valueold&filter2_type=search&filter2_value=&filter3_key=valuenew&filter3_type=search&filter3_value=&fieldkey=barcode&filtercdatefrom=&filtercdateto= read how much it should be https://www.google.com/search?client=firefox-bd&sxsrf=ALeKk01NAbcefz44tKMVUw4IJKL2qtAJUw:1615555074808&q=%D0%B4%D0%BB%D0%B8%D0%BD%D0%B0+%D1% 88%D1%82%D1%80%D0%B8%D1%85+%D0%BA%D0%BE%D0%B4%D0%B0&spell=1&sa=X&ved=2ahUKEwiC9-TS66rvAhUN4OAKHWQ9CwUQBSgAegQIEBA1&biw=1865&bih=946 in total, you uploaded different codes - so the system did not find them when searching, but only 13 characters were saved. if you think that your codes are valid (which I doubt), then you need to expand the field