Some general information on the key factors that are going to limit a campaign’s initial traffic:
1) Available Impressions: Is there any traffic available in your target geo? Use our Inventory Tool to make sure the targeting you wish to have for your campaign has enough traffic available. For example, if you’re targeting Mexico banner size 300×50– you may only have 200,750 impressions available maximum, but by simply adding 320×50 and 300×250 size creatives it could brings your potential inventory up. You should always be using this tool before you set up a campaign.
2) Daily Budget per Placement Cap: Again, this tool can limit traffic. It can be a great feature when testing a new campaign, but we recommend that you set it to at least 2-3 times your CPA to ensure you are not limiting traffic too much.
5) Frequency Cap: This is limiting how many times a given user sees your ads. Increasing the frequency cap will give you access to more impressions, but keep in mind that the more impressions you have with the same user, the less likely they are to interact with your ad.
6) Carriers: Whitelisting carriers is going to limit traffic. We understand that you may only want to target certain Carriers/ISPs, but keep in mind that this can significantly limit the total available inventory.
7) Devices: Whitelisting certain devices will again limit traffic. We understand that you may only want to target certain devices, but keep in mind that this can significantly limit the total available inventory.
8) Creatives: The main sizes are 320×50 (that account for 80%+ of traffic), 300×250, and 320×480. These are the sizes that are going to give you access to approximately 95% of traffic in almost all Geos, and even more in some cases. We strongly suggest you have at least one of each of these sizes in all campaigns.
Now obviously each campaign will be different, so these factors are where you should start to investigate/reference if you are asking why your campaign is not getting traffic.