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Ebay API "The ISBN field is missing. Please add ISBN to the listing and try again." but its there

Hopefully you can help as not even the ebay dev forums seem to be able too :S

So i am uploading books, out of 90,000 only 12,000 has listed and i always get this error "The ISBN field is missing. Please add ISBN to the listing and try again." When i print the data being uploaded i get this :-

{'availability': {'shipToLocationAvailability': {'quantity': 0}}, 'condition': 'NEW', 'product': {'title': 'Niteblessings : Meditations to close the day', 'description': '', 'aspects': {'format': ['294g'], 'format_title': ['Hardback 208 pages'], 'pagination': ['Hardback 208 pages'], 'imprint': ['Lion Books'], 'edition': ['New ed'], 'ISBN': ['0745981550'], 'published': ['22 Oct 2021'], 'classifications': ['22 Oct 2021'], 'readership': ['22 Oct 2021'], 'dimensions': ['167 x 146 x 18 (mm)'], 'pubCountry': ['United Kingdom'], 'countryOfOrigin': ['GB'], 'tariffCodes': ['49019900'], 'Author': ['In Description'], 'Condition': ['1000'], 'Book Title': ['In Description'], 'Language': ['In Description'], 'Format': ['In Description']}, 'imageUrls': ['https://jackets.dmmserver.com/media/356/97807459/9780745981550.jpg']}}

as you can see there is ISBN, i have tried ISBN 13, ISBN 10 etc and all gives me the same error it just makes no sense. Can anyone see what i am doing wrong here.

Many thanks :D



source https://stackoverflow.com/questions/72071882/ebay-api-the-isbn-field-is-missing-please-add-isbn-to-the-listing-and-try-agai

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