The following API version Live 4 methods have been disabled:

• CreateOrUpdateCampaign (Live), GetCampaignsList (Live), GetCampaignsListFilter (Live), GetCampaignsParams (Live), GetCampaignParams (Live), DeleteCampaign (Live), ResumeCampaign (Live), StopCampaign (Live), ArchiveCampaign (Live), UnArchiveCampaign (Live).
• CreateOrUpdateBanners (Live), GetBanners (Live), DeleteBanners (Live), ModerateBanners (Live), ResumeBanners (Live), StopBanners (Live), ArchiveBanners (Live), UnArchiveBanners (Live).
• Keyword (Live), GetBannerPhrases (Live), GetBannerPhrasesFilter (Live), SetAutoPrice (Live), UpdatePrices (Live), GetChanges (Live).

In the “Migration guide” you will find all the necessary information on method equivalents and campaign parameters for API version Live 4 and API 5.