Library of negative keywords
The library of negative keywords is a folder where you can group frequently used negative keywords into special sets. You can create up to 30 sets and use them in several groups of Text & Image ads at once. Up to three sets of negative keywords can be assigned to one group. Library sets supplement the negative keywords specified in the group and affect ad impressions the same way.
You must use the Yandex.Direct new interface to create sets of negative keywords and manage them.
How to create a set of negative keywords
. On the page that opens, click Add set in the upper-right corner. Enter a name for the set and add negative keywords separated by commas or -. The maximum number of characters (excluding spaces) is 4096.You can also quickly create a new set based on the existing one. In the settings of the appropriate set, 
click Create based on. All negative keywords from the original set will be copied to the new set.
When editing a set of negative keywords in the library, changes are applied to all the groups that the set is associated with. Before editing, check in the In groups column which groups the set is used in.
-. The maximum number of characters (excluding spaces) is 4096.Use in an ad group
- Link a set to a group
- You can link sets of negative keywords to one or more groups. On the group editing page, in , select multiple sets of negative keywords and click Done. The sets will be linked to an ad group.
To link a set from the library to multiple groups at once, on the Groups tab, select the groups you need and click . In the pop-up window, select a set from the library and click Link.
- View the list of linked sets
- You can view the list of sets linked to a group in both the old and new UI on the group editing page.
- See which groups a set is used in
- In the side menu, choose . On the page that opens, in the In groups column, go to the list of groups that the set is used in.
- Unlink a set from a group
- On the Groups tab, select the appropriate groups and click . In the pop-up window, select a set from the library and click Unlink.
Deleting a set from the library
You can only delete from the library the sets that are not used in any groups. On the library page, in the In groups column, check whether the set is linked to any groups.If the set is not used in any groups, select Delete in its settings. If the set is used, go to the list of groups it is linked to and delete it from the groups. You can then delete the set of negative keywords from the library.
