Good to know: this takes two parts. First you create one custom field in your integration settings and give it a recognized name, which lets AEvent align it to the right calendar link automatically. Then you hyperlink that field's merge tag inside your CRM or ESP email. No Zapier or middleware is needed. You can pass two link types: an Add to Google Calendar link, and an Add to Apple Calendar link. The Apple option delivers a standard .ics calendar file, the de facto standard that Apple Calendar and most other calendar apps (including Outlook) can open, so use it for any non-Google calendar.

You do not need to connect any calendar integration first. The calendar link options are built in, and each link is generated from the registrant's own event page.

Open your campaign, go to Integrations, and open the settings for the CRM or ESP you send email from (for example ActiveCampaign, GoHighLevel, Keap, or Mailchimp). Scroll down to Custom Fields (Personalization).

In the Custom Fields (Personalization) panel, click Create Single Field to add one field. The name you give this field is what tells AEvent which calendar link to build, so name it with a recognized keyword:

1. For a Google Calendar link, put gcal or google in the name, for example Gcal_Join_Link.

2. For an Apple / iCal link, put ical or apple in the name, for example Ical_Join_Link. This one delivers a standard .ics file that Apple Calendar, Outlook, and most other calendar apps can open.

Matching is not case-sensitive, and the keyword just needs to appear somewhere in the name. When AEvent recognizes the keyword it aligns the field for you: it sets the value type and selects the matching format, either Add to Google Calendar Link or Add to Apple Calendar Link. You do not have to set those manually. Confirm the field shows the correct calendar format, then save.

If the name is not recognized: AEvent will not auto-align it. Open the field, set its value type to URL, and pick Add to Google Calendar Link or Add to Apple Calendar Link from the format dropdown yourself, then save.

Now use that field inside your email. You do not paste the link itself; instead you hyperlink the field's merge tag onto your button or text (for example Add to Google Calendar), and each contact receives their own calendar link. The merge tag is built from the field name you created, and the exact syntax differs by platform. Using a field named Gcal_Join_Link as the example:

ActiveCampaign:

Keap (Infusionsoft):

GoHighLevel:

Mailchimp:

Swap in your own field name if you named it differently, and note that platforms vary in casing and merge-tag format. The safest way is to open your email editor's personalization or merge-field picker and select the field you created in Step 2 so the exact tag is inserted for you. Some editors paste the tag as plain text rather than a live link; if that happens, select the anchor text, add a hyperlink, and paste the merge tag into the link URL field. Repeat for your Apple Calendar field.

Tip: if your editor pastes the merge tag as plain text, highlight the text, click the link button, and paste the same merge tag into the URL field to make it clickable.

Calendar fields stay empty until AEvent has a real registrant to build the link from. Send a test registration through your funnel or form, then open that contact in your CRM or ESP and confirm the calendar field populated. Send yourself the email and click the link to confirm it opens the correct calendar event.

The calendar field is empty. The field stays empty until a real registrant exists. Send a fresh test registration, then check the contact again.

I don't see a calendar option, or the field did not auto-align. AEvent only auto-aligns when the field name contains a recognized keyword (gcal or google for Google, ical or apple for Apple). If your name does not include one, open the field, set its value type to URL, and pick Add to Google Calendar Link or Add to Apple Calendar Link from the format dropdown. Also confirm the calendar integration is connected (Step 1).

Your email shows the raw tag instead of a clickable link. The field's merge tag needs to be hyperlinked, not pasted as plain text, and it must match a field that exists in your CRM or ESP. Open your personalization or merge-field picker, select the exact field you created in Step 2, and add it as the hyperlink URL.

I need an Outlook, Yahoo, or other calendar link. Use the Add to Apple Calendar Link field. It delivers a standard .ics calendar file, which Outlook, Yahoo, and most other calendar apps can open. The dedicated Google option is for Google Calendar; the Apple link covers everything else.