How to publish Item Master products to a platform in bulk

If you build your catalogue directly in the OneCart Item Master, creating parent products with their variants, prices, stock and images inside OneCart, you can publish those products to a connected marketplace in bulk. You no longer need to list them somewhere else first and cross-post from that import.

This uses the same review-and-publish flow as a bulk cross-post: you pick a destination, set the destination category once, then review every product before anything goes live.

Before you start

• Your products should live in the Item Master with their variants and images loaded. See Creating inventory in OneCart.
• You need a connected destination shop on one of the supported platforms: Shopify, Shopee, Lazada or TikTok.
• Each variant you want published needs a SKU. Variants with a blank SKU are skipped.

Step 1: Select your products

1. Go to Products at app.getonecart.com/products.
2. Tick the checkbox next to each product you want to publish. You can select as many as you like.

Step 2: Open “Publish to a platform”

Open the Bulk Actions menu at the top of the Products page and choose Publish to a platform.

A window opens showing how many products you selected.

Step 3: Pick a destination and set the details

1. Choose the destination shop you want to publish to.
2. Click Continue.
3. Fill in the destination form. This is the same form used for a normal cross-post. For example, on Lazada or Shopee you pick the destination category and any required attributes. Every selected product inherits what you set here; you can still adjust individual products on the next page.
4. Click Publish to review.

Step 4: Review, then publish

You land on the review page, which lists a row for every product in the batch, showing its name, first image and SKUs. Check each one, make any per-product edits, then publish when you’re happy.

“Already listed on this shop”

If a product’s variants are already linked to a listing on the destination shop, OneCart marks that product as skipped with the note “Already listed on this shop.” This is deliberate: it stops you creating a duplicate listing for something you’ve already published there. The product still appears on the review page so you can see exactly what was and wasn’t sent.

What gets published

• Images: the product’s own images from the Item Master are used for the new listing.
• Variants, prices and stock: taken from the product’s active variants. Live stock is used at publish time.
• Weight and dimensions: OneCart backfills these from your Item Master values, then applies safe platform defaults if any are missing.

Worked example

Say Acme Retail (MY) builds a product “Cotton Crew Tee” in the Item Master with size variants S / M / L, and wants it live on their Shopee shop:

1. On the Products page, they tick Cotton Crew Tee (and any other products to publish).
2. Bulk Actions → Publish to a platform.
3. They pick their Shopee shop, click Continue, choose the Shopee category, and click Publish to review.
4. On the review page they check the row, then publish. The tee goes live on Shopee with its three sizes, prices, stock and images.

Related articles

• How to do a bulk cross-post in OneCart
• What is the Item Master?
• Creating inventory in OneCart