Hey there! I’ve built several tools on top of the Facebook Ads API, so I know how tedious manual targeting string input can be. Here are the best ways to pull official, structured targeting options directly from Facebook’s systems:

• Use the Targeting Search API Endpoint
  The GET /search endpoint is your go-to for fetching specific targeting categories like interests, behaviors, locations, and more. For example, to pull all fitness-related interest options, send a request like this:

  GET /v18.0/search?type=adinterest&q=fitness&access_token=YOUR_AD_ACCOUNT_TOKEN
  

  The response will include each option’s id, name, audience_size, and parent category details—everything you need to dynamically populate your targeting parameters instead of typing them manually.

• Leverage the Official Targeting Reference Docs
  Facebook’s internal Targeting Reference (built into their API documentation) lists every supported targeting category with exact parameter formats, valid values, and hierarchical relationships. For instance, you’ll find ISO country codes for location targeting, valid age ranges, and even niche options like job titles or device types. This eliminates guesswork when building your targeting objects.

• Copy Generated Code from Ads Manager
  If you prefer visual setup first, configure your desired targeting in Facebook Ads Manager, then look for the "Copy API Code" option (usually in the "More" menu of your ad set setup). This will spit out a ready-to-use snippet with the full targeting object structure—you can directly adapt this into your controller code instead of building strings from scratch.

• Get Recommended Targeting via the Targeting Ideas Endpoint
  If you’re unsure which options align with your campaign goals, call the GET /v18.0/act_{YOUR_AD_ACCOUNT_ID}/targetingideas endpoint. It returns tailored targeting suggestions based on your campaign objective, existing audience data, and even competitor insights, complete with all necessary parameters to implement them.

内容的提问来源于stack exchange，提问作者K Nugal