circle-exclamation
This documentation is currently under development. Certain sections are not yet complete and will be added shortly.

envelopeVia Email

Send The Wallet Crew link via email to enroll customers in mobile wallet

Email is the simplest way to reach existing customers and get them into Apple Wallet or Google Wallet. It works well for loyalty and membership cards because customers already trust this channel, and you can place the call-to-action in journeys you already run (welcome, purchase confirmation, service emails).

The key is to keep links secure. A wallet link is a bearer action. Anyone who gets the URL can try to open it. Use signed URLs or tokens, and avoid personal data in query parameters.

chevron-rightReal-world exampleshashtag
  • A retail Brand sends “Your loyalty card is ready” after newsletter sign-up.

  • A ticketing operator sends a “Save your ticket” email right after purchase.

  • A luxury Brand sends “Add your client card” after an in-store visit, with consent capture.

What you need before you start

You need a pass template and an issuance flow, plus a way to identify the customer. In most setups, The Wallet Crew resolves a pass either from an internal passId or from an external identifier coming from your CRM.

You also need a sender identity that customers trust, and that mailbox providers accept. Configure this once, then reuse it across all journeys. See Email provider and Configuring Custom Domain.

circle-info

If you plan to send from your own domain, set up SPF/DKIM and a DMARC policy. This improves deliverability and reduces phishing risk.

Choose the right email flow

There are two common flows. Pick one based on whether the customer already exists in your database.

Flow A — Customer exists: direct download

Use this when the customer already has a loyalty account (or any stable identifier) and you want a one-tap install. The email contains a secure URL that opens the Wallet Crew pass page and lets the customer save the pass.

To prevent ID enumeration, do not expose predictable identifiers (like a loyalty number) without a signature or token. This is the same principle as “signed Add to Wallet links” described in Wallet card security.

Example: signed direct-download link (HMAC)

For customers who already exist in your CRM (and you can safely reference them with an internal identifier), you can send a link that directly resolves to their pass.

Example:

https://app.neostore.cloud/{tenantId}/pass?id.y2.customerId={customerId}&id.y2.customerId.hmac={hmac256(customerId,tenantSecret)}

Keep the tenantSecret server-side. Anyone who has it can generate valid links.

Flow B — Customer does not exist: enrolment first

Use this when your email list is larger than your loyalty base, or when you need missing data or consent before issuing a pass. The link sends the customer to an enrolment form, then The Wallet Crew issues the pass at the end of the form journey.

Start here: Enrolment form.

circle-exclamation

Example: customer not in your CRM (pre-fill form)

If the customer is not in your CRM yet, you can use the enrolment flow to capture missing data and then push it to your CRM. Some Brands choose to pre-fill the form using query parameters from their email campaign tool.

Example (not recommended):

https://app.neostore.cloud/{tenantId}/[email protected]&firstName=Cyril&lastName=DURAND

triangle-exclamation

Recommended: token-based enrolment link (no PII in the URL)

Use a token to secure the link. This avoids exposing personal data in the URL and reduces tampering risk.

In practice, you generate a token from The Wallet Crew (API or back-office), store it in your emailing audience, then inject it into the CTA URL.

Example:

https://app.neostore.cloud/{tenantId}/mobile?neo.authToken={neostore-JWT}

How to include The Wallet Crew links in your emailing tool

You can use one of The Wallet Crew’s partner connectors (for example Actito or Klaviyo) or your own platform (Mailchimp, Salesforce Marketing Cloud, Brevo/Sendinblue, etc.).

1

Generate the token

Generate the token with The Wallet Crew API, or generate it manually from The Wallet Crew back-office.

Use a stable input (typically a customer ID or an email), then keep the token opaque in your campaign tool.

2

Store the token in your audience

Store the token in your emailing database as a custom attribute, so you can merge it into the CTA URL.

3

Build the CTA URL

Use a button like “Add to Wallet” and point it to a tokenized URL:

https://app.neostore.cloud/{tenantId}/mobile?neo.authToken={{profile.neostoreJwt}}

Replace {{profile.neostoreJwt}} with your tool’s merge tag syntax.

Add the CTA to your emails

In practice, you embed a link behind a button such as “Add to Wallet”. You can do this in your marketing tool (campaign templates) or in transactional emails sent by The Wallet Crew.

CTA examples

Email CTA example: “Add to Wallet” button inside a branded email

Use a high-contrast button and keep it above the fold on mobile.

Email CTA example: “Add to Wallet” link presented as a secondary action

If you have multiple CTAs, keep the wallet CTA visually distinct.

Signed links and tokens prevent tampering and reduce pass enumeration risk. They also keep personal data out of URLs that can be logged by proxies, mailbox scanners, or analytics tools.

Use these rules:

  • Prefer an opaque identifier (passId) when you can.

  • When you must use an external identifier, protect it with HMAC, a shared secret token, or a JWT.

  • Keep token lifetimes short for email campaigns. Treat the link as a password.

  • Assume emails can be forwarded. If forwarding must not work, add an email challenge or another verification step in the journey.

If you need the deep dive on supported mechanisms (HMAC, shared secret token, JWT), use Wallet card security as your source of truth.

Segment your sends and measure adoption

Email works best when you don’t spam customers who already installed the pass. Segment on “pass installed” status when you can, then only target customers who are still not installed.

If you need to sync install status back into your CRM, see Sync pass installation status to your CRM.

You can also tag installs for attribution. If you’re distributing via web pages, see how tagging works with neo.src on On your website.

Supported tools and connectors

You can send emails from your own email platform and embed Wallet Crew links in templates. You can also configure The Wallet Crew to send transactional emails as part of enrolment and verification journeys.

See: Connectors.

FAQ

chevron-rightShould I include customer email or name in the URL?hashtag

Avoid it. URLs are often logged and scanned. Use a token and let The Wallet Crew (or your backend) resolve the customer server-side.

chevron-rightWhat happens if a customer forwards the email?hashtag

If the link is a bearer token, the forwarded recipient can try to open it. If you must prevent that, use a short-lived token and add a verification step (email challenge) before issuing or revealing the pass.

chevron-rightHow do we avoid emailing customers who already installed the pass?hashtag

Segment your audience on install status, then target only “not installed” profiles. If you need the data in your CRM, set up installation status sync: Sync pass installation status to your CRM.

chevron-rightWhere should this live: email, website, or mobile app?hashtag

Use email when you already have a customer address and you want a low-effort conversion path.

Use web when the pass is installed from a logged-in area or checkout: On your website.

Use native app when you have an app and you want the fastest UX: On your mobile app.

Last updated