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Automatic LinkedIn engagement with AI comments using GPT-4o and Phantombuster

by plemeoadapted from n8n official workflow galleryUpdated Aug 2026
RequiresAAI AgentCCodeMicrosoft SharePointMicrosoft SharePointOpenAI Chat ModelOpenAI Chat ModelPhantombusterPhantombuster
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WaWaitOpenAI Chat ModelOpenAI Chat Mod…WaWait1PhLaunch AgentCoGet Random PostAgCreate CommentCoCreate CSV BinaryCreate CSV Bina…MSUpload CSVPhGet Autocomment AgentGet Autocomment…PhGet PostsPhLaunch AC AgentPhGet ResponsePhGet Search AgentSeSet ENV VariablesSet ENV Variabl…AgGenerate Random Search TermGenerate Random…ScSchedule TriggerOpenAI Chat Model1OpenAI Chat Mod…MSUpdate fileMSDownload fileCoCheck if in ListIfIfWaWait2CoPrepare Updated DataPrepare Updated…EFExtract from FileExtract from Fi…CTConvert to FileMSGet Available Session CookiesGet Available S…EFExtract CookiesAgSelect CookieOpenAI Chat Model2OpenAI Chat Mod…1234567891011121314151617181920212223242526272829
1/5
STEPS · 29
Runs on a schedule

Who’s it for B2B marketers, recruiters, and personal-brand builders who want to spark conversations on LinkedIn by automatically posting short, relevant comments on fresh industry content—while staying under daily limits. How it works / What it does Schedule Trigger fires every hour. Select Cookie picks a rotating LinkedIn session-cookie (time-slice logic). Generate Random Search Term (GPT-4o) outputs a realistic AI/BPA keyword. LinkedIn Search Agent (Phantombuster) scrapes recent posts. Get Random Post chooses one post and passes its text to Create Comment (GPT-4o) which returns a ≤150-character reply in the chosen language. Builds linkedin_posts_to_comment.csv, uploads to SharePoint, and launches the Auto-comment Agent to post the reply. Post URL is logged to linkedin_posts_already_commented.csv to avoid duplicates. Wait nodes throttle launches to ~120 comments/day. How to set up Add credentials: Phantombuster API, SharePoint OAuth2, OpenAI API key. In SharePoint › “Phantombuster” folder create: • linkedin_session_cookies.txt – one cookie per line. • linkedin_posts_already_commented.csv with header postUrl.

Tags

n8nreference-onlyagentlm-chat-open-aimicrosoft-share-pointphantombuster
Connects
AAI AgentCCodemicrosoftsharepointMicrosoft SharePointopenaichatmodelOpenAI Chat ModelphantombusterPhantombuster
CategoryAI Automation
Triggermanual
Complexityadvanced
Nodes29
AddedAug 1, 2025

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