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Every resource founders actually use, in one library.

The essays, videos, podcasts, books and tools behind every answer across eChai's hubs, from starting up to go-to-market, D2C, founder money and AI, each with a note on why it is here.

What founders use most, ranked by how many answers lean on it.

  1. If you want compliant invoices and eventual e-filing from one tool rather than stitching together a billing app and a separate... Zoho Tool · D2C Zoho Books: GST Billing Software built for Indian SMEs Zoho
  2. If your D2C brand plans to sell outside India too, this is the cleanest mental model for treating tax registration as a... Stripe Template · D2C Getting Started: Sales Tax Compliance Checklist Stripe
  3. A ready-made checklist format, not just an article to read, that you can literally tick through while setting up your invoicing... A2X Template · D2C The ESSENTIAL Ecommerce Bookkeeping Checklist A2X
  4. Meta's own free training portal, the closest thing to a structured curriculum on how its ad products actually work, straight... Meta Blueprint Course · D2C Browse free courses from the Blueprint catalog Meta Blueprint
  5. A founder oriented course built by growth marketers who have run Meta campaigns across hundreds of startups, pitched at the... Demand Curve Course · D2C Meta Ads (FB + IG) Demand Curve
  6. It is Meta's own onboarding path, so it matches exactly what an ad account rep or agency will assume you already know. Meta Blueprint Course · D2C Get Started with the Conversions API Meta Blueprint
  7. Use this the day after you connect Meta, and again every month. Tracking breaks silently far more often than founders expect. WeltPixel Template · D2C Shopify Conversion Tracking Checklist: 10 Things to Verify After Install WeltPixel
  8. A free calculator that turns your target audience size, objective, and desired results into an actual budget figure, useful for... AdEspresso Tool · D2C The Ultimate Guide to Facebook Ads Budgets (+ Free Calculator) AdEspresso
  9. Meta's own free training walks through setting up an Advantage+ Sales campaign end to end, worth doing before you touch Ads... Meta Blueprint Course · D2C Maximize Performance with Advantage+ Sales Campaigns Meta
  10. The fastest way to go from 'what should my ROAS be' to an actual number specific to your own products and margins. Eightx Tool · D2C Break-Even ROAS Calculator Eightx
  11. For a founder who wants to go past a blog post, this is a structured, paid course built specifically around scaling with... CXL Institute Course · D2C Advanced Meta Ads Course CXL Institute
  12. Copy, paste your own numbers, done. The fastest route from reading about break-even ROAS to actually knowing yours. Adfix Template · D2C Free ROAS and PPC Profit Calculator (Google Sheets) Adfix
  13. The one structured, multi week option here, built by Meta itself, for a founder who wants to actually learn to read and... Coursera Course · D2C Meta Marketing Analytics Professional Certificate Meta
  14. A ready made Google Sheets template to pull reach, CPM, CTR, ROAS, and conversion data out of Ads Manager into one view you can... Catchr Template · D2C Free Meta Ads (ex Facebook Ads) Google Sheets Dashboard Template Catchr
  15. A genuinely free (no tier, no session cap) heatmap and session recording tool that lets a founder watch real ad traffic... Microsoft Tool · D2C Microsoft Clarity Microsoft
  16. A free, downloadable Google Sheets audit template that turns the whole diagnostic checklist (tracking, structure, creative,... Vaizle Template · D2C Facebook Ads Audit: The Simplest Way So Far (Free Meta Ads Audit Template) Vaizle
  17. Worth checking as a boring, overlooked killer: a slow or failing UPI/payment integration at the last checkout step silently... Razorpay Tool · D2C UPI Payment Gateway in India Razorpay
  18. A well built program from an Indian origin SaaS company, useful as a template: directory listing, co-marketing, certification,... Chargebee Tool · 5 min read · GTM Chargebee Solution Partner Program Chargebee
  19. Shows a clean two track split (technology partners versus solution partners) at real scale, 250 plus partners across 35 plus... MoEngage Tool · 5 min read · GTM MoEngage Catalyst Partner Ecosystem MoEngage
  20. This is the actual five step recipe for turning open ended consulting into one fixed offer you can sell repeatedly: research... jonathanstark.com Template · 10 min read · GTM Productized Service Creation Process Jonathan Stark
  21. Real reported rupee numbers for the entry point of a GTM career in India, with total compensation ranging from about 3.8 lakh... PayScale Tool · 5 min browse · GTM Sales Development Representative (SDR) Salary in India PayScale
  22. Included as a caution as much as a benchmark. The India average here sits near 3.3 lakh because the title Account Executive... PayScale Tool · 5 min browse · GTM Account Executive Salary in India PayScale
  23. The most direct way to see what a serious fractional leader is trained to deliver: niche definition, qualifying engagements, a... Pavilion University Course · 6 week course · GTM How to Succeed as a Fractional Sales Leader Sophie Carter and Tom Glason
  24. A word-for-word script showing the six moves (permission, verification, context, problem, labelling, poke) on a real product.... joshbraun.com Template · 5 min read · GTM Poke the Bear Cold Call Script Josh Braun

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The hubs

Starting Up Find an idea, validate it, build, and land your first customers. 1046 questions GTM Go-to-market, from breaking in to how the best teams do it. 352 questions D2C Building a direct-to-consumer brand, India-first. 482 questions Wealth Paying yourself, ESOPs, secondaries, and de-risking founder wealth. 154 questions How Founders Use AI How founders actually put AI to work, mapped topic by topic. 278 questions Glossary Plain-language definitions of the startup and VC terms you'll hit. 390 terms
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