If your data feed is located on another server or website (such as Dropbox or an FTP client) and you make changes to your inventory constantly, you can set a schedule for the feed upload.

To set a schedule for your catalog data feed upload:

1. Go to Catalog Manager.
2. Click Data Sources.
3. Click Add Data Source.
4. Click Use Data Feeds and click Next.
5. Click Set a schedule.
6. Choose how frequently you want Facebook to check your data feed for updates. You can choose Daily, Hourly and Weekly. If you choose Hourly or Weekly as your frequency, you can also specify when your scheduled upload repeats.
7. Enter the direct URL for your feed. You can use URLs that use http, https, ftp or sftp.
   Note: The URL should point directly to your data feed file; otherwise, the upload may fail.
8. (Optional) Enter the username and password for the data feed provider. This is different than the username and password you use to access your Facebook ad account.
9. Enter a name for your data feed.
10. Choose the currency type for your data feed. The currency type is used for your data feed if you don't specify it in your data feed file.
11. Click Next.
12. Review your data feed file for any errors. If you're missing any required columns in your file, or there are columns that Facebook doesn't recognize, you can map them to the appropriate columns here. Any columns mapped here are saved for future data feed uploads.
13. Click Next.

Your items are uploaded to Facebook.

* Nguồn: Facebook