UPC attribute not present in dropdown of eBay Catalog Identifiers

[vlad.b 0]

I have installed and M2E and now need to fill out Description section for eBay listing. So far I have only problem to assign eBay Catalog Identifiers. I have attributes UPC, EAN, ISBN, Brand in Magento DB but they are not listed in any of dropdowns in that section of Description. The attributes are Global.

Please advise me how can i use my existing custom attributes for unique product codes in listings.

[Paul 1]

Most probably, these attributes are not added to all attribute sets of your magento.

Please check this link, it might be useful: https://support.m2epro.com/knowledgebase/148105--ebay-product-attribute-is-not-available-for-sele/

[GFS 0]

I have the same problem - but they are added to all attribute sets ...