Una is here, Ecwid Support. Thank you for reaching out. I’m sorry for the delayed reply!
You should connect your Ecwid store to Facebook first. The integration is available on all paid Ecwid plans, please find more detailed information and instructions here: https://support.ecwid.com/hc/en-us/a...-Facebook-Shop
If any further questions arise, please feel free to ask. We are here to help.