1. Most important: What you're selling and how much you're selling it for.
2. Price comps: Use Research (formerly Terapeak). I also use the free version of Worthpoint and other ecommerce platform data, including historic auction house data, if needed.
3. Proper titles. Order of importance is from left to right. Your title should have searchable keywords and be logically readable, as if you're speaking to a person.
example:
here's a proper title:
Caitlin Clark Women's Size 7 Shoe White Color
or
Caitlin Clark Shoe Women's Size 7 White Color
or, you could go without the apostrophe in "Women's"
but, I would lead with "Caitlin Clark" because it's the most important and relevant keyword for the example product, followed by "shoe"
Caitlin Clark Shoe White Colored Women's Size 7
There's many ways to write a correct title, but what you don't want to do is use your title to stuff with adjectives, such as rare, amazing, beautiful, etc. Buyers are not likely to search using words such as, "beautiful" or "amazing"
FYI, you could end a title with One of a Kind or OOAK, since Ebay understands certain abbreviations. Here's a tip to check if Ebay understands the abbreviation. Write your abbreviation out in the actual title, then go to description and have AI generate a description, if it doesn't use the long-form I believe it's an indication Ebay system doesn't understand the abbreviated form of the word.
Statistically, your item is more likely to sell with a word count over 60, but I'm positive if I had 1 Troy pound Gold Bars, they would sell like hotcakes at $15,000 usd if I titled as such: "1 Troy pound Gold Bar" or "One Troy Pound Gold Bar" This simply reflects on the importance of "what you're selling and how much you're selling it for".
Your figurative bible should be "Research". With "Research" you can view all relevant sales data, price points, 30 Day sale through rates, extrapolated to 60 and 90 day, conditions, quality, etc.
