Supliful does not provide an authorization certificate or letter.
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This is because you will be selling products under your own brand. As the brand owner, you do not need additional authorization from Supliful to sell your own products.
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However, to sell products on TikTok Shop, you will need to trademark your brand. This step can help protect your brand identity and ensure a smoother selling experience.
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To avoid rejection of your brand authorization request, please make sure to submit an official trademark certificate and confirm it within your TikTok Store settings by clicking on My Account -> Account Settings -> Qualification Center -> Brand Qualification -> Add Brand Authorisation.
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You can find more information here.

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