Builder resource

The Newsletter Creator

Sell paid posts and digital products to your list without leaving ConvertKit.

Monetise an existing newsletter audience by selling one-off products from inside the same list tool.

WordPress holds the long-form, ConvertKit owns the list, Stripe takes the money, and Zapier glues the new-customer events back into a "Buyers" segment for future launches.

Built for: Writers, journalists, indie publishers

This page is the builder map: patterns, responsibilities, recipes, and product decisions for adding Plandalf to this commerce stack.
The Numi promo email GIF settings screen showing an email countdown preview.
Email timer GIFs let the same deadline campaign appear in email while checkout still respects the promo state.
The Numi editor top bar showing preview and share controls for a buying surface.
Buy buttons and shareable offers keep the buying moment close to the page, post, or campaign.

Architecture

Treat Plandalf Offers as the commerce layer between the sales page, the buying moment, and the payment processor. Your stack owns the audience and fulfilment experience. Plandalf owns offer configuration, checkout state, pricing rules, buyer identity, invoices, and the events that drive follow-up.

Stage System Handoff
Email Kit (ConvertKit) Plandalf receives the visit on the offer surface and keeps the source context attached to the checkout.
Site WordPress Plandalf opens from that page with the selected offer context.
Checkout Plandalf Plandalf validates the offer, applies pricing logic, and emits checkout events.
Payment Stripe Plandalf sends the payment request to Stripe, then records the completed purchase event.
Automation Zapier Plandalf Automation sends the event payload to Zapier.
Email Kit (ConvertKit) Plandalf Automation sends the event and customer fields to Kit (ConvertKit).

How This Stack Makes The Sale Work

The Newsletter Creator is useful when each tool has a clear job: the audience surface creates intent, Plandalf turns that intent into a configured offer, Stripe collects payment, and the follow-up tools receive the purchase context they need.

Choose The Pattern

Start by deciding which business moment you are building. The stack changes depending on whether checkout starts from a sales page, a launch campaign, an offer page, a checkout template, or an existing product catalog.

Build The Offer Layer

The offer is the commercial object your product points at. It should describe what the buyer can purchase, how checkout appears, which price rules apply, what invoice gets recorded, and what automation happens after purchase.

The Numi offer editor with layout, product, theme, automation, invoice, and settings controls.
The offer editor is where the checkout surface, products, automation, invoices, and display mode come together.

Wire The Buying Moment

The stack should decide when the buyer is ready. Plandalf should decide what the checkout means. Keep the page, campaign, or offer focused on the buying moment, then let the offer carry the checkout mode, product, price, invoice, and automation context.

On the offer pageUse for hosted checkout pages, launch pages, pricing pages, and checkout templates.
Inside the campaignUse for coupons, deadline funnels, order bumps, upsells, save offers, and lifecycle sequences.
After purchaseUse when fulfilment, invoices, receipts, CRM updates, tax context, or email follow-up need the same purchase event.
The Numi editor top bar showing preview and share controls for a buying surface.
Buy buttons and shareable offers keep the buying moment close to the page, post, or campaign.

Plan The Data Contract

The useful part of a commerce stack is not the button. It is the agreement between the offer, Plandalf, the payment processor, and follow-up tools about which object owns each piece of commerce state.

Object Primary owner How Plandalf uses it
Customer Your app Receives identity and buyer fields so checkout and follow-up stay attached to the right person.
Offer Plandalf Packages products, prices, checkout mode, invoices, coupons, bumps, upsells, and confirmation state.
Product and price Shared Use stable keys so app entitlements, invoices, and automation events point at the same commercial object.
Payment Stripe Plandalf keeps checkout and invoice context while the processor handles the charge.
Purchase event Plandalf Starts fulfilment, CRM updates, lifecycle sequences, receipts, and internal notifications.

Product Surfaces This Stack Depends On

These screenshots come from the product surfaces behind The Newsletter Creator. They show the Plandalf records and controls a builder should configure before sending buyers from WordPress into checkout.

The Numi promo email GIF settings screen showing an email countdown preview.
Email timer GIFs let the same deadline campaign appear in email while checkout still respects the promo state.
The Numi editor top bar showing preview and share controls for a buying surface.
Buy buttons and shareable offers keep the buying moment close to the page, post, or campaign.
The Numi selling blocks panel showing order bump controls.
Order bumps are configured as selling blocks rather than one-off front-end code.
The Numi coupon discount settings panel.
Coupons keep discount behavior inspectable for sellers and reusable across checkout flows.
The Numi offer editor settings tab showing customer and checkout settings.
Customer identify makes the buyer durable across checkout, invoices, events, and follow-up.
The Numi offer editor automation tab showing sequence controls beside the checkout canvas.
Automation is configured beside the offer, so purchase-triggered workflows stay attached to the buying surface.
The Numi offer editor with layout, product, theme, automation, invoice, and settings controls.
The offer editor is where the checkout surface, products, automation, invoices, and display mode come together.
The Numi sales flow builder showing checkout pages and flow structure.
Sales flows keep the buying path visible before traffic moves from the campaign into checkout.
The Numi offer settings payment controls showing checkout payment configuration.
Payment options belong beside the offer, so the seller can review checkout methods before launch.
The Numi automation integrations screen showing connected workflow destinations.
Automation integrations make the post-purchase handoff visible instead of hiding it inside campaign code.

Build Recipes

Use these like product-specific implementation notes: choose the selling moment, configure the Plandalf surface, then link into the exact features, integrations, sequences, and docs needed to ship it.

The Numi editor top bar showing preview and share controls for a buying surface.
Buy buttons and shareable offers keep the buying moment close to the page, post, or campaign.

Publish a product-backed checkout from the sales surface

Outcome: Traffic starts where the buyer already is, while Plandalf owns the offer, checkout state, payment context, invoices, and follow-up event.

  1. Choose the page, post, template, or campaign that should create demand.
  2. Point its buying action at a Plandalf offer with products, prices, checkout templates, and payment options already configured.
  3. Preview the checkout surface before traffic reaches it.
  4. Verify the purchase event creates the expected invoice and fulfilment path.
The Numi selling blocks panel showing order bump controls.
Order bumps are configured as selling blocks rather than one-off front-end code.

Add conversion controls after the base checkout works

Outcome: Coupons, order bumps, upsells, and save offers stay attached to the offer instead of becoming scattered campaign code.

  1. Start with the base product and price so checkout is correct without extra controls.
  2. Add only the coupon, bump, upsell, or deadline control that fits the selling moment.
  3. Test the invoice and purchase event after each conversion control is added.
  4. Send the buyer into the correct automation or sequence after checkout completes.
The Numi offer invoices records view showing customer invoice rows and payment status.
Invoice records preserve the buyer, line item, payment state, and support context after purchase.

Preserve the operational record

Outcome: Support, finance, fulfilment, and lifecycle tools can answer what happened after the buyer paid.

  1. Confirm the invoice settings, customer fields, and product line items before launch.
  2. Use purchase events or sequences for fulfilment instead of relying on the success screen.
  3. Route receipt, support, tax, and lifecycle work to the right downstream tools.
  4. Keep the adjacent stack links handy when the build needs tax, invoices, or webhook depth.

Compare The Pattern

A commerce stack is different from a processor-only checkout, a marketplace storefront, or a standalone funnel tool. Use these linked comparisons when a builder is deciding whether Plandalf Offers should sit between the sales surface, payment processor, and follow-up tools.

Linked Implementation Map

Use this map when The Newsletter Creator turns from an idea into implementation work. Every linked feature, integration, docs page, workflow, comparison, template, and tool is a next step a builder or agent can follow from this stack.

Operational Recipes

These are the practical recipes a builder usually needs after the checkout opens. They stay product-level: Offers, Automations, integrations, invoices, sequences, and payment events explain the workflow before any tool-specific setup.

Builder Checklist

Before shipping the integration, verify these decisions. If one is unclear, the checkout may open, but the business workflow after purchase will still be brittle.

01Offer selectedEvery buying moment points to a clear offer, not an improvised payment link.
02Identity mappedYour product can reconcile the buyer, customer, workspace, account, or entitlement after purchase.
03Event path chosenFulfilment starts from a purchase event or sequence, not from a front-end success screen alone.
04Records preservedInvoices, line items, payment state, and customer fields are available for support and reporting.

Next Steps

Automation sequences

Checkout started to abandonment recovery Recover a checkout that opened but did not complete by sending the buyer and offer context to the email or automation tool. Checkout completed → fulfillment Fire fulfillment actions the moment a Plandalf checkout completes.

Templates

Webflow + Stripe Checkout A ready-to-clone Plandalf checkout template designed for Webflow sites paying via Stripe.

Use cases

Writers & creators Drop a buy button inside the post. Sell the upgrade in the same scroll. Career coaches & advisors Sell sessions, packages, and cohort programs on a checkout that matches your coaching practice. Studios, coaches, trainers Sell memberships, class packs, and drops without renting another membership app every month. Solopreneurs A practical checkout system for one-person businesses selling digital products, services, subscriptions, and small launches. Growth & checkout teams When the checkout is the product. A surface designed to convert, not configure.

Features and docs

Offers product Checkout pages, embedded offers, products, prices, coupons, bumps, upsells, and invoices. Automations product Purchase-triggered workflows for CRM, email, fulfilment, records, and handoff. Sequences Events that fire after checkout, payment, subscription, and lifecycle changes. Payment integrations Stripe, PayPal, payment options, invoices, and payment event routing. Offers docs How Offers packages products, prices, checkout layouts, and conversion elements. Hosted checkout docs Hosted and embedded checkout setup, test sessions, and preview sessions. Stripe docs How Stripe connects and what events Plandalf listens for. Webhook docs Checkout, payment, and subscription events for custom automations. Email GIF promo Conversion Buy button Checkout Coupons Coupons Coupon frequency Coupons

Feature detail