Hi,

I am selling a dietary supplement on Amazon and I want to customize the Primary Supplement Type attribute (primary_supplement_type). This is NOT an attribute that can be found in the regular listing screen.
I’m attaching another screenshot of my supply page here so it’s clear what exactly I want to change (red outlined attribute).

I received the following message from Amazon Customer Support:

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You can do this as follows:

1. select the category-specific inventory file template for your category
2. specify the item data.
   -> column: item_sku
   -> column: update_delete -> Partial update
3. now fill ONLY the column with the value to be changed. In the Partial Update as few columns as possible should be filled in.
   ->column: primary_supplement_type

Once you have updated the information in the file, follow the steps below to upload:

• Click: https://sellercentral-europe.amazon.com/listing/upload?ref_=xx_upload_tnav_status
• Go to step 2 (step 1 only checks your file).
• Please click on the drop down arrow next to File Type and select “Categories Stock File Template”
• Search for the file you want to upload on your computer.
• Send an email notification to your email address.
• Make sure that the format of your processing report is in excel (easier to read)
• click on “Upload” button

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Since I am selling a dietary supplement, I have searched both the Food & Beverage and Drug & Personal Care inventory file templates for the Primary Supplement Type attribute (primary_supplement_type) on this page: https://sellercentral-europe.amazon.com/gp/help/help-popup.html/?itemID=1641&referral=A2MX57VRU8YCSL_A3IVOWVOFCWHHY . But unfortunately the attribute is not present in either of the documents.
Now my question: Which inventory file template do I have to use to adjust the primary_supplement_type attribute?
OR is my case not about primary_supplement_type and Amazon is on the wrong track? How would I need to adjust the attribute from the screenshot above if that is the case?
Am super grateful for any tips
Thanks a lot!