Best Practices for Building Custom GPTs

Upload Core Context Documents:

• Brand Voice Guide (even a simple cheat sheet)
• About Your Business (what you do, who you help)
• Real Content Samples (emails, blogs, social posts)
• Sample Proposals or Welcome Emails
• FAQ or Client Journey Notes

Tip:

Don’t wait until it’s “perfect.” Even rough drafts train your GPT to sound like you.

Custom GPT Setup Checklist

• [ ] Upload Brand Voice Guide
• [ ] Upload Business Overview
• [ ] Upload Real Content Samples
• [ ] Give clear instructions like you're training a real assistant
• [ ] Set output guidelines (length, tone, structure)
• [ ] Plan to tweak after 1-2 weeks based on real outputs

Custom GPT Samples

1. Lead Prequalification GPT