You can publish in bulk, with both identities in the ad header:

  1. Open Meta Ads Editor and select the destination campaigns or ad sets.
  2. In the Page and Instagram section, select Partnership ad (collab).
  3. Choose the Partner Page and the Partner's Instagram.
  4. Upload the creatives and click Create ad, as with any upload.

Details:

  • The main identity remains the Page and Instagram account you choose under Page and Instagram. The partner is added as a second identity.
  • The partner must have approved your account under Creator Partnerships on their Instagram. Without this approval, Meta rejects the creative, and the error appears on the ad.
  • If the ad set already has a collab ad, the Editor picks up the partnership automatically when you leave the fields blank.