Demand Control Center (or DCC) is a tool meant to increase transparency when working with Appodeal and give you maximum control over mediation. DCC allows you to keep track of activated networks in your applications, to manage ad units (add and delete, as well as switch their priority in the waterfall) and independently link your own ad network accounts to the Appodeal account. Now you can manually adjust the position of ad units where it is necessary. At the same time, some networks can continue operating in an automatic mode.
The tool consists of three parts: Networks Accounts, Line Items, and Priorities.
Networks Accounts allows you to manage linked ad network accounts to be used within applications. You can independently link your accounts and subsequently use them in applications. For most networks, Appodeal accounts are used by default, but you can always add your own. After linking, you will be able to enable them in your applications while we will be able to receive income reports from these accounts and aggregate that data for you in our dashboard.
Line Items provides an opportunity to enable or disable ad networks, and to manage line items created in these networks for the application.
Priorities give you the power of creating custom waterfalls. With this tool, you can manage line items order using one of three modes: manual, eCPM, and automatic, or you can use all of them at the same time. Moreover, you can create waterfalls for each of the countries, or you can even target the waterfall for certain user segments.
*is available only with Appodeal SDK 2.6.1+
Ad unit - a unique entity that should be created on the ad network side to serve ads.
Line item - the synonym for the ad unit. We use the term “line item” in the Appodeal dashboard.
eCPM (effective cost per mille) - the metric that helps measure the generated ad revenue from 1000 ad impressions.
Waterfall - a list of ad units sorted from top to bottom based on the historical eCPMs. With waterfall, when requesting an ad to fill, the best-performing ad networks appear at the top of the waterfall.
Network account - an account of the specific ad network that an app developer can link to their Appodeal account to simplify the process of showing ads.
Waterfall algorithm explanation
Whenever a user opens an application, we send a list of ad units (or waterfall) to the device. All the ad units in the waterfall are prioritized based on historical eCPMs.While caching we fire all ad units one by one until one of them returns with an ad creative. With this approach, we ensure the best possible eCPM. Moreover, this guarantees a solid fill rate.
Actually, we have two waterfalls. The second one is the waterfall that is described above. And another one is used to serve ads as soon as possible. This waterfall contains the cheapest ad units with the best fill rate performance. So if you call “show method” right after the initialization of our SDK, ads will be shown almost immediately. Otherwise, we will initiate the ordinary waterfall to fill an app inventory with the most profitable ads.
To find this tool navigate to the Apps page > Network accounts tab.
This tool is used to create and manage your own ad network accounts. The Admob account can be set up automatically. For other ad network accounts, there are just a few simple fields to fill out. These fields can be different from one ad network to another, depending on a set of data points each ad network requires. You can set up any of ad network accounts as a default account, and we will use it for all the new apps.
To find this tool you should navigate to the Apps page, choose the app you want to manage line items for, click on the three dots on the right to see the options, and select the Mediation Settings tab. For your convenience, we divided line items by the ad types.
This tool enables you to create and manage line items for all the supported ad networks, but it also gives you the power to turn the ad networks on and off when you need to.
To create a new line item for the specific ad network & ad type you should extend the list of line items for this ad network and click the “Add Line item” button, or you can click on the gear icon to manage the settings for existing line items.
For every line item (including those ones created by Appodeal) you can specify the countries where this line item will be added to the “waterfall”. Choose countries from the list for even more precise targeting.
Default eCPM settings determine the start position of the ad unit in the waterfall. Once we have enough data from the ad network side, we’re able to analyze their eCPM tendencies and predict which eCPM would be more effective.
In the code field you should fill the unique identifier of this ad unit.
This tool is located right next to the Line items tab.
Priorities are a feature that allows you to move line item positions around with the “drag and drop” function and organize them into country/segment groupings that are easy to create. In other words, you can manage your waterfall configuration in a number of ways. Whenever you create a new app we automatically add “Default configuration” where all the line items are located in the Automatic Priority section. By default this configuration is applied to all countries/segments. If you add the line item into the custom priority, it will override the "countries" setting for this line item, thus it can work for the country which isn’t selected in the settings of this line item. You can create new configurations for the specific ad type by clicking the “New Configuration” button.
First, you need to add the name of your configuration. We advise you to name it by the countries/segments names you want to target this priority to.
Then you need to choose, whether you want to target this configuration to a range of countries or for some segments. You can select one country as a group or a number of countries for the configuration, however you can’t use the same country in several groupings (for example, if you choose Canada, USA and Australia for one of the country groupings, you can’t feature Canada in another grouping).
The same principle applies to the Segments targeting.
Finally you need to configure the ad units positioning in the waterfall for the selected ad type. There are three modes you can utilize: Manual Priority, Automatic Priority and eCPM Priority.
On the left you can see the tab Unused line items — that’s where the newly created and previously unused line items are placed, so you can drag all the line items you’d like to use for Priority Modes. Keep in mind that in this section you can’t create the new line items, for that you’d need to use the Line Items tool.
In most cases it’s recommended to add line items to the Automatic Priority where they are positioned automatically (based on the statistics at our disposal). You can also use the “Move all unused line items here” button to move all the ad units from the Unused line items section to the Automatic Priority. Note, that line items in this section are sorted by their names.
In Manual Priority you can arrange top positions: line items that go first. Manual Priority is basically for your preferred line items that you want to “release” as a priority in the waterfall. You can choose up to 3 line items for one position. In fact, it means that every time will be randomly selected one of the specified ad units and placed to the corresponding position in the waterfall.
The eCPM mode is in-between and allows specifying eCPM for each line item for further automatic positioning.
All three modes are functioning simultaneously.
If a line item is displayed in the list in a muted state, that means it can’t be added to the waterfall associated with this priority for the reason this line item was switched off in the Line items tool.
Popular use cases
In this section you can find some basic use cases of our DCC separated by tools.
If you have a direct deal with an ad network, and you agreed on the position of the network in the waterfall, you should use the manual section to obtain the necessary results.
If you want to activate a FAN placement, it is easier to use the manual section to put the right line item in the first place in our waterfall.
Sometimes ad networks cannot display your statistics for different reasons. In this case, the positions of line items for this ad network will be automatically changed by our algorithm, unless you put them in the manual or eCPM sections.
If you are not sure which section suits you best, use the automatic priority section.
You can use segments targeting to conduct A/B tests of two waterfalls for one country (by adding “country” and “part of audience” filters in the segments).
To use the same waterfall configuration for a range of countries, you can target priority to these countries instead of creating priorities for each of them.
If an ad unit performs poorly, you can easily disable it using Line items, and this change will apply for all of the priorities.