> ## Documentation Index > Fetch the complete documentation index at: https://docs.wisepim.com/llms.txt > Use this file to discover all available pages before exploring further. # Set Primary Category > Bulk set the primary category for your products. Control which category drives breadcrumbs, canonical URLs, and product organization. Set which category is the primary (main) one for your products. Many e-commerce platforms use the primary category for breadcrumbs and canonical URLs, so getting it right helps your SEO. ## Set the primary category Bulk editing, Set Primary Category across many products at once in WISEPIM Bulk editing, Set Primary Category across many products at once in WISEPIM Check the products you want to update, or use filters and select all matching results. Click **Bulk Edit**, then search for "Set Primary Category" or find it under **Categories & Organization**. Choose one category to set as the primary for all selected products. Decide whether to add the category to products that are not in it yet, then click **Apply**. ## Options | Option | What it does | Default | | -------------------------------------------------------------- | ---------------------------------------------------- | -------- | | **Primary category** | The category to set as primary (single choice) | Required | | **Add category if not already assigned** | Adds the category to products that are not in it yet | On | | **Only set primary for products that already have categories** | Skips products with no categories | Off | ## Tips * Leave **Add category if not already assigned** on so every selected product ends up with the primary category, even if it was not in it before. * The primary category drives breadcrumbs and canonical URLs on most platforms, so getting it right helps your SEO. * Filter by category first, then set the primary. That way you only touch products already in the right category tree. ## Related Add products to one or more categories. Swap a product's categories for a new set.