# Black and White lists
# What are these lists needed for?
One can save profitable and unprofitable parameters, sources, networks in these lists. They are easily exported for advertising networks.
Keitaro allows to mark the following parameters with labels:
- Sub ID 1..15
- Creative ID
A green label sends the parameter to a whitelist, a red one - to a blacklist. When importing a new list, the labels are automatically added to the appropriate parameters. You can also filter parameters based on the labels they have.
# Where can the label's be put?
Go to the campaign's report. And then to one of the metrics which support labelling.