Can I run a campaign on Instagram and TikTok at the same time?

No. Instagram and TikTok cannot be combined into a single campaign – you need to create a separate campaign for each platform.

You can of course run two campaigns in parallel: one on TikTok and one on Instagram. Budget, targeting and reporting are tracked separately per campaign.

Note that the sound link is different per platform and must be added separately in each campaign – see also How do I find my TikTok sound? and How do I find my Instagram sound?