Custom GPT
C-GPT
Advice on increasing marketplace sales, covering Etsy listing improvements, SEO on Trendyol, pricing on Hepsiburada and marketing tactics.
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ecommerceguide summary
C-GPT is a custom GPT that answers marketplace selling questions, covering Etsy listing improvements, SEO on Trendyol, pricing on Hepsiburada and general marketing tactics to increase sales. Its ChatGPT description states it is an expert in boosting online marketplace sales. It runs inside ChatGPT, uses no attached files or extra tools, and has logged 400+ conversations. OpenAI has scheduled custom GPTs to retire on 11 December 2026.
Why it stands out
Its prompt starters name Etsy alongside the Turkish marketplaces Trendyol and Hepsiburada.
What C-GPT does
ecommerceguide editorial- Prompt starters cover Etsy listings, Trendyol SEO and Hepsiburada pricing
- Answers questions on marketing tactics for driving more sales
- Runs inside ChatGPT with no browsing, code or image tools
- Around 400+ recorded conversations; no published builder name
- Created November 2023, record last updated June 2026
- Custom GPTs are scheduled to retire on 11 December 2026
Sources
ecommerceguide profiles are built from public product information and written for ecommerce teams. We do not test products, and paying never changes where a listing ranks.
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