There is a cooldown between submitting your content to when it affects your CCR.
After submitting content to a campaign, there is a 48-hour cooldown period where the developers can review your content to make sure it is relevant and appropriate for the campaign.
If your content is not rejected, then you will see the appropriate changes to your Campaign Completion Rate (CCR)!
We also recommend ensuring submissions are sent within at least 24 hours of the deadline's end, taking API delays could cause your Campaign to fail!