How to Optimize Campaign Payout (Bid) v/s Campaign Difficulty Level?

• We expect your campaign to have a conversion rate of at least 10% (i.e. 10 conversion for every 100 clicks) for a CPI campaign and 1% (i.e. 1 conversion for every 100 clicks) for a CPA campaign.
• Make sure that user can reach the conversion event within the time frame after app install/open as indicated in the campaign CPA Event Time setting.
• Make sure that user can easily understand and trigger the conversion event by completing the required steps as indicated in the campaign CPA Event Description setting.

Adjust Campaign Payout (Bid) or Event (CPA)

• Kindly note that there should be balance between campaign payout (Bid) and campaign difficulty level.
• If there is mis-match between campaign payout (bid) and campaign difficulty level, then consider increasing the campaign bid  
• If target CPA event to difficult for an user to reach, then consider reducing the difficulty level by changing the target CPA event to an easier Event accordingly.
• Make sure the campaign payout (Bid) is fairly high enough to motivate users to perform the steps required to reach the conversion event depending upon the difficulty level.

Adjust Campaign Difficulty Level

• In case you are NOT sure on campaign difficulty level, you should start with a targeting an easiest CPA Event, then see how it performs.
• If the performance is good, you may consider increase difficultly level slightly going forward and repeat the same process again.
• Basically your approach should be going from easier level campaign towards difficult level campaign, this approach will give you good idea on how you campaign performs on various difficulty levels.
• Directly targeting a difficult CPA event making the campaign difficulty level harder for end-users is highly NOT rerecommended.