HKHayrullah Karinmagesheet-team.hashnode.dev·2d ago · 10 min readThe Sheet Outlives AppSheet. Check That Its References Do.The usual argument for AppSheet over Power Apps is about where the data lives. AppSheet keeps its records in a Google Sheet you own, so if you cancel the subscription the app disappears and the spread00
HKHayrullah Karinmagesheet-team.hashnode.dev·Sep 27 · 8 min readAn Empty Reminder Inbox Is Not an Empty PipelineA daily follow-up digest is the first automation worth adding to a spreadsheet CRM. A trigger fires at eight, a script reads the deals tab, and anything due or overdue lands in your inbox. Mine ran fo00
HKHayrullah Karinmagesheet-team.hashnode.dev·Sep 25 · 7 min readThe 24-Hour Window Decides Whether Your WhatsApp Reply Sends or Gets RejectedThere are exactly three ways to automate WhatsApp: rent a SaaS platform, wire up Meta's Cloud API yourself, or build on Google Sheets and Apps Script. I have built the third one, and what surprised me00
LTLưu Tuấn Anhinblog.fiscybersec.com·Sep 23 · 11 min readClickFix Browser Campaign: Embed C2 Into Google SheetsExecutive Summary What happens when the expensive EDR system is completely "blind", and the enterprise's Secure Web Gateway (SWG) happily licenses malicious traffic just because it sends to... docs.go00
HKHayrullah Karinmagesheet-team.hashnode.dev·Sep 7 · 8 min readYour Chatbot Verified the Price, Then Pasted It Into a Sentence It WroteA grounded chatbot retrieves the right catalog rows, asks the model which price it used, looks that price up, and compares. Mine did all of that and still quoted a stale price to a customer. The retri00
PPetrichorinmeteosource.hashnode.dev·Sep 7 · 3 min readHistorical Weather Data in Google SheetsWeather is one of the cheapest explanatory variables you can add to a dataset. Footfall, delivery times, energy consumption, crop yields, ice cream sales. A lot of the variance you're staring at is ju00
HKHayrullah Karinmagesheet-team.hashnode.dev·Sep 1 · 10 min readOne callModel() for Gemini, OpenAI and Claude in Apps ScriptA lead-classification job I built ran every inbound row through the flagship model because that was the model already wired up. 60,000 calls a month, about 800 input and 60 output tokens each. On clau00
HKHayrullah Karinmagesheet-team.hashnode.dev·Aug 22 · 11 min readWhen a Commission Rate Changes, Last Quarter's Payouts Shouldn'tA rep opened her March statement in August and the total had moved by $312. Nobody had edited the ledger. Finance had raised her rate in the Rules tab in July, the nightly recompute walked the full tr11R
HKHayrullah Karinmagesheet-team.hashnode.dev·Aug 18 · 15 min readApps Script Session Auth: Your Cache Expires Before Your Session DoesA user signs in at 09:05, works through the morning, and at 14:40 a click comes back with "your session has expired". They sign in again and the app behaves perfectly. The next day it happens at 11:2000
HKHayrullah Karinmagesheet-team.hashnode.dev·Aug 12 · 14 min readApps Script Handover Audit: Verify You Actually Own the Delivered CodeOwning the source code and owning the running system are two different things in Apps Script, and from inside the editor they look identical. You can hold every line, in a file in your own Drive, with00
