Auth0 Pricing Estimation [BtoC Edition]

Estimating Auth0's Developer plan cost for a BtoC service and thinking through whether the per-user pricing fits.

How to Renew and Repurchase AWS EC2 Reserved Instances

Notes on renewing and repurchasing EC2 Reserved Instances after they expire, since they aren't auto-renewed.

Applying Credits to Accounts Under AWS Organizations

AWS Support's answer on when AWS Activate credits do and do not apply to accounts under AWS Organizations.

Separating Cloudflare Accounts and Billing per Customer — Why Gmail Aliases Get Rejected and How to Mint Real Addresses with Google Workspace Aliases or Groups

You want a separate Cloudflare account per customer so billing is separated. Trying to mass-produce accounts with Gmail +alias fails with 'A variation of this email address is already taken.' Creating another account needs a real, distinct email per account. Here is why, and how to mint those addresses with Google Workspace aliases or Groups.

How to Transfer Billing Accounts Between Google Cloud Organizations

Moving a Google Cloud billing account across organizations directly, without parent-child orgs.

How to Send Google Cloud Billing Alerts to Slack

Sending Google Cloud budget alerts to Slack via Zapier, or Pub/Sub + Cloud Functions.

[Google Apps] Can Google Drive storage be purchased per organization? → No

Google Drive storage cannot be purchased per organization — it is allocated to individual user accounts, according to Google support.

Shippo Address Validation API Costs 6 Cents for Non-US Shipping Addresses

Shippo now charges $0.06 per non-US address for Address Validation API requests — notification recap.

[Shippo] Additional Charges Will Be Billed When Shipping Fees Paid to USPS Are Insufficient

USPS via Shippo will now bill surcharges when the postage paid is less than the actual shipping cost.

Slack Multi-Channel / Single-Channel Guest account pricing

How Slack's Multi-Channel and Single-Channel Guest pricing works and when to use each.

[Stripe] About Refund Cancellation/Reversal Processing

Stripe refunds can't be cancelled — the workaround is to re-charge via Create Payment in the Stripe dashboard.

Stopping Surprise Overage Bills on Supabase — Setting Up Spend Cap to Hand Databases to Vibe Coders Safely

You want to hand a Supabase database to non-developers, but you do not want a surprise pay-as-you-go bill when they blow past quota. Does Supabase have a setting that does not charge for overages? The short answer: the Free plan and the Pro plan's Spend Cap can pin your cost to a flat rate. Here is how it works, what it does and does not protect, the add-on loopholes, read-only mode behavior, and a safe configuration.

How to Check TinyMCE Usage and What Happens When Exceeded

How to check TinyMCE Cloud usage and what happens when you exceed the plan, per the official pricing docs.