Crosslisting best practices: 10 rules that prevent mistakes

Asked on Reddit: “Cross Listing Best Practices” in r/FacebookMarketplace

Updated October 2026. Crosslisty is a Chrome extension (it also works in Brave and Edge) that copies a listing to the other marketplaces, fills each form for you, and removes sold items from your other listings.

The ten rules

1. Crosslist one-of-a-kind items. Items you have one of are the ones that can sell twice.
2. Add a stock code to every item so you can find it on any marketplace in seconds.
3. Write the description once and be accurate. Include measurements and flaws. It is copied everywhere, so mistakes are copied too.
4. Photograph square and centred. Every marketplace crops differently.
5. Price for fees. A flat price everywhere means a different profit on each marketplace.
6. Check the form before you post. Category, condition and shipping always need a human look.
7. Delist the moment something sells, before you pack.
8. Read each marketplace’s rules. Local pickup, authenticity and prohibited item rules differ.
9. Do not mass-edit or mass-repost. Some marketplaces limit repeated deleting and re-adding.
10. Review monthly. Drop the marketplace that never sells your items.

Facebook Marketplace specifics

• Facebook Marketplace is tied to your personal account and asks for location and pickup or shipping, which depend on how you sell.
• Local pickup sales do not carry the same fees as shipped orders. Check the current terms.
• Crosslisty does not detect sales made on Facebook, so when something sells there, end your other listings by hand. When it sells elsewhere, Crosslisty opens the Facebook page for you to end the listing.

Pricing for fees

Fees differ a lot, so one price everywhere gives uneven profit. Use the fee comparison and set a price adjustment percentage per marketplace. Crosslisty applies it when it fills the price.

Keep a record

Keep an inventory of what is listed where, with the date, price and marketplace. Search and export it so a missed sale is easy to trace.

Questions

Related guides

• Avoid selling twice
• Marketplace fees compared
• Why crosslisted listings come out wrong
• Delist checklist