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Best Practices for Custom Instructions in Cometly AI

How to use Custom Instructions with Cometly AI Chat

Updated yesterday

Best Practices for Writing AI Instructions

Make the AI smarter by giving it context about your business, your goals, and how your funnel works. The more it knows, the better it can give insights tailored to your situation.


What to Include

You don’t need to write a novel—just give the AI a clear snapshot of what you're trying to do. Here’s what works best:

1. Your Funnel Steps

Describe the main steps someone goes through from ad click to conversion.
Example: Ad click → lead form → booked call → show → close

2. Your Business Type

What kind of business are you? (SaaS, ecommerce, agency, info product, etc.)

3. Your KPI Goals

List the metrics that matter most and what your goal is on that metric:

  • Cost per click (CPC)

  • Cost per lead (CPL)

  • Cost per booked call or purchase (CPA)

  • ROAS (return on ad spend)

  • Close rate / show rate

  • Customer acquisition cost (CAC)

  • Average order value (AOV)

  • Lifetime value (LTV)

4. Any Special Notes

Include anything unique about your process:

  • Cold vs warm traffic

  • What kind of ads you run (UGC, static, carousels, etc.)

  • Whether you sell via calls or checkout pages

  • If you're testing anything new

5. Naming Conventions

If you use naming systems in your campaign structure (like H1 = Headline 1, V1 = creative version 1), include those here so the AI understands how to break down performance by ad elements.


Fill-In-the-Blank Template

I run a [type of business] selling [product/service]. My funnel looks like: [step 1] → [step 2] → [step 3] → [step 4].

My KPI goals:
- [Goal #1, like $40 CPL or 3x ROAS]
- [Goal #2]
- [Goal #3]

Additional context:
- [Audience type, sales process, creative type, etc.]

Naming conventions:
- Campaign: [Example naming structure]
- Ad set: [What the naming means]
- Ad: [What labels like H1, V1, LP1 mean]

Example: SaaS Company

We’re a SaaS company helping advertisers track ad performance across Facebook, Google, TikTok, and LinkedIn.

Funnel: Ad click → lead → scheduled call → deal created → closed won

KPI goals:
- Target CPL: $40–$60
- Cost per booked call: $300–$500
- Show rate: 70%+
- Close rate: 40%
- CAC: under $400
- ROAS: 5x+

Additional context:
- We run cold traffic to VSL pages to pre-qualify leads
- Sales happens 1:1 over Zoom

Naming conventions:
- Campaign: TOF_Prospecting_VSL or BOFU_Retargeting_Reviews
- Ad set: LOOK-AL-7D-Purchasers or INT-MarketingFounders-US
- Ads:
- H1-V1-UGC = Headline 1, Version 1 creative, UGC style
- H2-LP2-Static = Headline 2, Landing Page 2, static image ad

————————————

Example: Ecommerce Brand

We’re a DTC ecommerce brand selling premium fitness supplements.

Funnel: Ad click → product page → add to cart → checkout → purchase

KPI goals:
- Target CPC: under $1.00
- CPA: $35–$50
- ROAS: 3x minimum
- AOV: $80–$100
- LTV: $250+

Additional context:
- Running cold traffic on Meta and TikTok
- Creatives are mostly UGC videos and lifestyle images
- Testing post-purchase upsells and subscription box

Naming conventions:
- Campaign: PROTEIN-Launch-May or RETARGET-7D-ATC
- Ad set: INT-Fitness-M25-44 or LAL-180D-Customers
- Ads:
- H1-V1-UGC = Headline 1, Creative Version 1, UGC style
- H3-Static-BundleOffer = Headline 3, Static image, bundle promo
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