https://bsky.app/profile/causalityengine.bsky.socialhttps://bsky.app/profile/causalityengine.bsky.social/post/3mz66wdz6pq2fWhy are my UTMs not showing in GA4? ChatGPT: seven causes. Perplexity: wrong dimension, redirects. Gemini: four buckets. Real answers from 3 chatbots, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v09731 Oct 2026 11:29 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3mz66wdz6pq2fhttps://bsky.app/profile/causalityengine.bsky.social/post/3mz5zivp7ap2rWhat does Paid Search mean in GA4? ChatGPT, Perplexity, Gemini: traffic from paid search ads. Real answers from 3 chatbots, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v09631 Oct 2026 09:52 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3mz5zivp7ap2rhttps://bsky.app/profile/causalityengine.bsky.social/post/3mz5r2vk6en2mHow do I know if my Meta ads work? ChatGPT, Perplexity, Gemini: check against GA4 and real sales. Real answers from 3 chatbots, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v09531 Oct 2026 07:21 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3mz5r2vk6en2mhttps://bsky.app/profile/causalityengine.bsky.social/post/3mz47gzpbml2zWhich attribution model should a Shopify store use? ChatGPT: last non-direct. Perplexity: linear. Gemini: it depends. Real answers from 3 chatbots, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v09430 Oct 2026 16:33 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3mz47gzpbml2zhttps://bsky.app/profile/causalityengine.bsky.social/post/3mz3pqkvft62pWhy do my email clicks show up as direct? ChatGPT, Perplexity, Gemini: add UTMs. Real answers from 3 chatbots, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v09330 Oct 2026 11:52 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3mz3pqkvft62phttps://bsky.app/profile/causalityengine.bsky.social/post/3mz3mtl4cjq2p31 measurement vendors. Zero published validations against randomised experiments. Naive lift in one study: 316%. Experimental lift: 72.8%. The questions to ask any vendor, ours included, in Chapter 16: causalityengine.ai/book30 Oct 2026 11:00 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3mz3mtl4cjq2phttps://bsky.app/profile/causalityengine.bsky.social/post/3mz3ddlumez2fWhat does Unassigned mean in GA4? ChatGPT, Perplexity, Gemini: fix your UTMs. Real answers from 3 chatbots, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v09230 Oct 2026 08:10 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3mz3ddlumez2fhttps://bsky.app/profile/causalityengine.bsky.social/post/3mz3bez5zpb2rShould I scale an ad with 2x ROAS? ChatGPT: yes. Perplexity: maybe. Gemini: it depends. Real answers from 3 chatbots, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v09130 Oct 2026 07:35 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3mz3bez5zpb2rhttps://bsky.app/profile/causalityengine.bsky.social/post/3myzmmytnph2fHow do I measure organic search value? ChatGPT, Perplexity, Gemini: a pile of formulas. Real answers from 3 chatbots, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v09029 Oct 2026 15:51 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3myzmmytnph2fhttps://bsky.app/profile/causalityengine.bsky.social/post/3myzakrlvaf2aWhat is iROAS? ChatGPT, Perplexity, Gemini: same formula. Real answers from 3 chatbots, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v08929 Oct 2026 12:15 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3myzakrlvaf2ahttps://bsky.app/profile/causalityengine.bsky.social/post/3myyxoi6jfg2zCan I do MMM in Excel? ChatGPT: yes, for a small dataset. Real ChatGPT answer, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v08829 Oct 2026 09:36 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3myyxoi6jfg2zhttps://bsky.app/profile/causalityengine.bsky.social/post/3myyscs2y6t2rYou cannot A/B test one day. By the time the result means anything the sale is over. Twenty-four hours is a sample size, not a strategy. €99, once. #LastClickLies https://www.causalityengine.ai/demo?utm_source=social&utm_medium=social&utm_campaign=black-friday-fomo&utm_content=bf-test29 Oct 2026 08:00 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3myyscs2y6t2rhttps://bsky.app/profile/causalityengine.bsky.social/post/3myypu5drfw2aDo I need server-side tracking for Shopify? ChatGPT: not necessarily. Real ChatGPT answer, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v08729 Oct 2026 07:16 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3myypu5drfw2ahttps://bsky.app/profile/causalityengine.bsky.social/post/3myx5a2hf2k2fWhy is my Google Shopping ROAS so high? ChatGPT: branded demand, overlap, refunds. Real ChatGPT answer, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v08628 Oct 2026 16:10 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3myx5a2hf2k2fhttps://bsky.app/profile/causalityengine.bsky.social/post/3mywrey3yfm2zDo Meta view-through conversions count? ChatGPT: yes, in Meta's reporting. Real ChatGPT answer, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v08528 Oct 2026 12:38 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3mywrey3yfm2zhttps://bsky.app/profile/causalityengine.bsky.social/post/3mywgk3gpxh2fWhy do attribution models give different answers? ChatGPT: different assumptions. Real ChatGPT answer, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v08428 Oct 2026 09:24 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3mywgk3gpxh2fhttps://bsky.app/profile/causalityengine.bsky.social/post/3mywbkwxowb2jCan I run ads to increase direct traffic? ChatGPT: yes, indirectly. Real ChatGPT answer, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v08328 Oct 2026 07:55 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3mywbkwxowb2jhttps://bsky.app/profile/causalityengine.bsky.social/post/3myulauhot32nWhat does Cross-network mean in GA4? ChatGPT: several Google ad networks at once. Real ChatGPT answer, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v08227 Oct 2026 15:43 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3myulauhot32nhttps://bsky.app/profile/causalityengine.bsky.social/post/3myua3a4mho2aWhat is blended ROAS? ChatGPT: total revenue divided by total ad spend. Real ChatGPT answer, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v08127 Oct 2026 12:23 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3myua3a4mho2ahttps://bsky.app/profile/causalityengine.bsky.social/post/3myu3gsuvdn2lA typical DTC geo test can detect an 8.3% lift and nothing smaller. One Dutch province against eleven can never beat p = 0.083. Which of your channels can be measured at all? Chapter 15, free: causalityengine.ai/book27 Oct 2026 11:00 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3myu3gsuvdn2lhttps://bsky.app/profile/causalityengine.bsky.social/post/3mytv4r55ml2fIs email marketing worth it for Shopify? ChatGPT: yes, usually. Real ChatGPT answer, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v08027 Oct 2026 09:07 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3mytv4r55ml2fhttps://bsky.app/profile/causalityengine.bsky.social/post/3mytqnpfcea2aCan a small store run incrementality tests? ChatGPT: yes, with simpler designs. Real ChatGPT answer, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v07927 Oct 2026 07:47 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3mytqnpfcea2ahttps://bsky.app/profile/causalityengine.bsky.social/post/3mys6g6i5g42dWhat is Google Meridian? ChatGPT: Google's open-source marketing mix model. Real ChatGPT answer, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v07826 Oct 2026 16:48 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3mys6g6i5g42dhttps://bsky.app/profile/causalityengine.bsky.social/post/3myrmlqqf4p2dWhat is server-side tracking? ChatGPT: tracking on your server, not just the browser. Real ChatGPT answer, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v07726 Oct 2026 11:29 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3myrmlqqf4p2dhttps://bsky.app/profile/causalityengine.bsky.social/post/3myrf45yjhf2mTracking Google Shopping sales? ChatGPT: set up a Purchase conversion. Real ChatGPT answer, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v07626 Oct 2026 09:15 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3myrf45yjhf2mhttps://bsky.app/profile/causalityengine.bsky.social/post/3myraov7pd62rIs 7-day click attribution accurate? ChatGPT: to Meta's rules, yes. Real ChatGPT answer, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v07526 Oct 2026 07:56 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3myraov7pd62rhttps://bsky.app/profile/causalityengine.bsky.social/post/3mypmvbmqmb2zWhat is position-based attribution? ChatGPT: a 40/20/40 split. Real ChatGPT answer, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v07425 Oct 2026 16:29 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3mypmvbmqmb2zhttps://bsky.app/profile/causalityengine.bsky.social/post/3myp3zazk6e2uWhere does Direct traffic come from? ChatGPT: GA4 couldn't tell. Real ChatGPT answer, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v07325 Oct 2026 11:27 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3myp3zazk6e2uhttps://bsky.app/profile/causalityengine.bsky.social/post/3myox3vtkfp2jHow far back does GA4 look? ChatGPT: 90 days for key events by default. Real ChatGPT answer, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v07225 Oct 2026 09:59 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3myox3vtkfp2jhttps://bsky.app/profile/causalityengine.bsky.social/post/3myokleiotw2lHigh ROAS, no profit? ChatGPT: ROAS ignores your costs. Real ChatGPT answer, checked against real data: https://causalityengine.ai/?utm_source=bluesky&utm_medium=social&utm_campaign=chatbot-attribution&utm_content=v07125 Oct 2026 06:15 +0000at://did:plc:o7jhtm6k3qs4lj47s6mlnsif/app.bsky.feed.post/3myokleiotw2l