Applies one label change to up to 500 campaigns in one call: ADD appends the labels, OVERWRITE replaces the campaign's labels with them, REMOVE takes them off and CLEAR removes every label (labels is then ignored).
Reference
POST https://YOUR-NETWORK-DOMAIN/rest-api/campaigns/labels.do
Applies one label change to up to 500 campaigns in one call: ADD appends the labels, OVERWRITE replaces the campaign's labels with them, REMOVE takes them off and CLEAR removes every label (labels is then ignored). Label names that do not exist yet are created when the caller holds the Create Labels permission, otherwise the call is a 400 naming them. Campaigns whose labels would not change are skipped as 'unchanged', deleted or unknown ids as 'deleted' / 'not-found'. The response lists changed ids and skipped {id, reason} pairs. The batch is all-or-nothing on permissions: without the Campaign Labels permission, or if any campaign's advertiser is outside the caller's UPDATE share, nothing changes.
Form Params
idsarray<integer>required
Campaign IDs to change, 1 to 500
2001
labelsarray<string>
Label names, comma-separated or repeated
premium
labelUpdateTypestring
ADD (default), OVERWRITE, REMOVE or CLEAR
ADD
Responses
200
Batch applied
400
No ids or more than 500, no labels for ADD / OVERWRITE / REMOVE, or a new label the caller may not create