It's no big secret that to turn a campaign into a success you have to A) analyze its performance and B) optimize along the way. We know the drill! That's why we introduced a new tab when opening any of your campaigns, called The Performance Tab.Below you can find the most important aspects to monitor and optimize, once the campaign has been started.Monitoring a campaignOnce a campaign is created and running, just head to the Performance Tab.CPA Target  CampaignImpressions: The amount of traffic that your campaign received.Conversions: The number of conversions received.eCPM: Effective CPM, how much is paid per 1000 impressions.Target cost: Amount you are willing to to payReal Cost: Real cost of  a conversionRevenue:  Total amount of funds generated before removing any expenses.Spending: How much you have spentSpending Difference: Difference between "Spending" and "Target Spending"Target Spending: How much you are willing to spendCPM CampaignWith a very quick look, you can see the performance of your campaign (say last 7 days) and other important information like:Impressions: The amount of traffic that your campaign received.Win Rate: (if applicable) An indicator of how competitive your bid is versus the competition.Conversions: The number of conversions received.eCPM: Effective CPM, how much is paid per 1000 impressions.Revenue:  Total amount of funds generated before removing any expenses.Spending: The amount spent for the selected date range.ROAS: (if applicable) Indicating the success of your campaign (only if you report the price/payout of the reported conversions).Profit: How much you have actually earned from your campaign.But that's not all, the journey begins from here. You can get a lot more insights into your campaign by checking the table below:Grouping options You can group by and have visibility for all the important metrics by clicking on anyone from the list - Geos, Creatives, Zone, Source, OS name, Browser Name, SSP, etc.You can also add a secondary dimension and have better visibility on any combination, for example, Group by Zone + OS name (secondary dimension) or Zone + GeoThe table displays the results of the group by selection and is the basis for your optimization.What's newAuctions represent the opportunities your campaign received (and had a chance to be displayed) and the impression is when it was actually displayed. Respectively the win rate is the ratio between Auctions and Impressions. The Bid column shows you the CPM bid, whether it be flat price, different price per quality tier, or (in case you have a custom bid) per zone/source in your campaign.Here are some explanations and tips and tricks.1. Find the traffic that brings you the most Conversions or Revenue or highest ROAS - use the sorting options on the given metric - for example sort by Conversions descending2. Use the granularity (group by) options and then influence your Winrate. 2.1. Use cases:You want to:Raise your bid because you want to get more traffic because your ROAS and/or Conversion rate is great ORLower your bid because your ROAS is marginally negative and you want to start spending less and eventually turn profitableHow to do it:Edit the bid by clicking straight into the corresponding cell. Enter the desired bid, move away from the cell, and you are done.You can do that on Country, Country+Quality Tier level, or zone/source level.Country+Quality Tier - Bid Editing (CPM)Custom Bid per Zone+Country - Bid Editing (CPM)If a zone/source is not performing at all, you can block it straight away.