UPC flagged[ Edited ]
January - last edited January
if a spreadsheet is being used for the feed, simply be certain
that the format for all columns and all cells in the sheet are
set to plain-text or similar -- never a number or automatic.
for example, for a google-sheet, select the entire-column or entire-sheet,
select format, number, plain-text; to test, simply input 12-zeros in a cell,
when navigating outside the cell, all 12-zeros should remain as-is.
also, be certain that the gtin value being used is designed for global-trade,
has been assigned by gs1, and the exact same item is currently being sold by
multiple-merchants -- otherwise, simply submit the identifier_exists attribute
with a value of no and do not submit any gtin (upc), do not submit any mpn,
and do not submit any brand, for such item-offers.
otherwise, google may be contacted for guidance.