How to assign product categories to an exhibitor

How to assign product categories to an exhibitor

Use this guide when you need to tag an exhibitor with one or more product categories — for filtering, matchmaking, and discoverability within the event app.

What you'll need before starting

What you need	Where to get it
Product category IDs	`GET /api/v2/categories/get?event_id=`

Request

Bash

curl -X POST "https://your-event-domain.com/api/v2/exhibitor/set" \
  -H "Authorization: Bearer your_api_key_here" \
  -F "event_id=7" \
  -F "external_id=EXT-001" \
  -F "product_categories=12,34,56"

Difference between `product_categories` and `interest_categories`

Parameter	Purpose
`product_categories`	Categories representing what the exhibitor offers (activity / exhibit type)
`interest_categories`	Categories representing what the exhibitor is interested in (for matchmaking)

Both accept comma-separated product category IDs from GET /api/v2/categories/get.

Notes

product_categories is a full replacement — passing new IDs replaces all existing assignments
Non-fatal errors for invalid category IDs appear in data.errors; valid IDs are still applied