How to use multiple keywords.

Keywords are only used when using the 'direct selection' feature.

Direct selection is a way to manage delivery of your inventory without using publishers and zones. Read more here.

You can define multiple keywords for each banner and display them depending on the keywords used in the invocation code. Multiple keywords have to be separated by spaces.

You can assign one or more keywords to a banner and you can use the same keywords as a keyword statement. For example, if you assign the keyword "sports" to a banner, it will be considered for delivery if 'sports' is used in a keyword statement.

If the banner contains more than one keyword, for example 'sports', 'news' and 'science', any one of these keywords will identify the banner. Using only 'sports' will work, and so will using only 'news'.

An alternative way of defining a different content section of a website is the use of channels. Read more here.