TL;DR
Bing, Pinterest, and X all have server-side conversion APIs that exist and accept events in 2026. What separates them on Shopify is the install path: Pinterest has a native sales channel that drops the browser tag for you, while Bing's UET tag and the X Pixel are both do-it-yourself installs through Custom Pixels. The catch is that "the API exists" does not mean "your store is sending to it." Microsoft's UET Conversions API is still pilot/provisioned, so you have to confirm your account is enrolled, and Pinterest's native channel may or may not be forwarding server-side depending on its version. WeltPixel Conversion Tracking does not cover any of these three. It handles GA4, Meta, TikTok, Google Ads, and Reddit. This piece tells you what each platform supports and routes you to the per-platform setup guide.
Key Takeaways
- Pinterest is the only one of the three with a native Shopify sales channel; it installs the browser tag automatically and may forward CAPI depending on channel version.
- Microsoft/Bing has no native channel. UET installs as a custom pixel via Settings → Customer events → Add custom pixel.
- X has no native channel either. The X Pixel installs the same custom-pixel way as Bing's UET.
- All three conversion APIs are real in 2026, but Microsoft's UET Conversions API is pilot/provisioned, so confirm your account has access before planning around it.
- WeltPixel Conversion Tracking supports GA4, Meta, TikTok, Google Ads, and Reddit server-side. It does not support Bing, Pinterest, or X.
- Under roughly $500/month on Bing or X, the browser tag alone is fine. Server-side only pencils out at higher spend, and usually only when a GTM server container is already running for Meta or Google.
How are Bing, Pinterest and X different on Shopify?
The fastest way to understand these three is one table. The column that actually decides how much work you are in for is "native Shopify channel," and only Pinterest has one.
| Platform | Native Shopify channel? | Browser pixel | Server-side CAPI | WCT support | Realistic Shopify option |
|---|---|---|---|---|---|
| Microsoft / Bing | No | UET tag | Yes, but pilot/provisioned (confirm account access) | No | UET via Custom Pixels; GTM server container for CAPI; CSV upload |
| Yes (sales channel) | Pinterest tag (auto) | Yes (Pinterest API for Conversions; varies by channel version) | No | Native channel; verify CAPI in settings; GTM container | |
| X (Twitter) | No | X Pixel | Yes, live in 2026 | No | X Pixel via Custom Pixels; GTM server container for CAPI; CSV upload |
The non-obvious lesson here is that difficulty is uneven. Merchants tend to assume that if their tracking app skips a platform, the platform must be hard to set up everywhere. That is not true. Pinterest is close to one-click because Shopify maintains a real channel for it. Bing and X are both manual custom-pixel work, regardless of which app you run. If you only remember one thing from this article, remember that "native channel" is the dividing line, and Pinterest is on the easy side of it.
How do I track Microsoft/Bing conversions on Shopify?
Microsoft has no native Shopify sales channel, so the Bing path is a manual pixel install plus an optional server-side layer. The browser side is the Universal Event Tracking tag (UET), Microsoft's equivalent of the Meta Pixel.
Install it through Shopify's Custom Pixels editor. Go to Settings → Customer events → Add custom pixel, name it something like "Microsoft UET," and paste your UET tag from Microsoft Advertising. The sandbox runs your tag against the standard storefront events, so you can fire purchase and add_to_cart from inside the same editor.
For server-side, the UET Conversions API exists, but access has been pilot/provisioned, meaning Microsoft has to enroll your account before you can send to it. Do not plan a server-side rollout until you confirm in your Microsoft Advertising account that the Conversions API is available to you. If it is, a GTM server container is the practical way to forward events to it, ideally the same container you already run for Meta or Google. A bridge worth knowing about: Microsoft Advertising's Google Ads import can pull your campaign structure and conversions across, which is a partial shortcut if your Google Ads tracking is already solid. The full setup, including the UET event taxonomy, is in the Microsoft Ads UET tracking guide for Shopify.
How do I track Pinterest conversions on Shopify?
Pinterest is the one platform of the three with a real native Shopify channel, which makes it the easiest browser-side setup and the most confusing server-side one. Shopify's native Pinterest sales channel installs the Pinterest tag automatically, so browser-side coverage is basically handled the moment the channel is connected.
Server-side is where you have to check rather than assume. The Pinterest API for Conversions is real and accepts events like checkout, add_to_cart, and page_visit. Newer versions of the official Pinterest channel include a pre-mapped CAPI component, but whether your store is actually forwarding server-side depends on the channel version and whether CAPI is enabled in settings. Installing the channel does not guarantee server-side coverage.
To verify, go to Sales channels → Pinterest in Shopify Admin and look for a "Conversions API" or "Enhanced Match" token field with a value in it. Then cross-check in Pinterest Ads Manager under Ads → Conversions: events tagged "API" or "CAPI" are server-side, events tagged only "Tag" are browser-side. If you spend under roughly $1,000/month on Pinterest, the browser tag from the native channel is enough and you can stop there. The deeper walkthrough, including the diagnostics screen, is in the Pinterest tracking guide for Shopify.
How do I track X (formerly Twitter) conversions on Shopify?
X has no native Shopify channel, so the setup mirrors Bing: a manual pixel install plus an optional server-side layer. The browser side is the X Pixel, renamed from the Twitter Pixel after the 2023 rebrand, but functionally the same tag.
Install it the custom-pixel way. Go to Settings → Customer events → Add custom pixel, paste the X Pixel base code from your X ads dashboard, and add the event calls you want inside the sandbox. That gives you browser-side purchase and page-view tracking.
On the server side, X is the cleanest story of the three. The X Conversions API is live in 2026, server-to-server, and X recommends running the pixel and CAPI together with deduplication so you do not double-count. You set it up in Events Manager inside the X ads dashboard. The endpoints and event schema carry over from the Twitter era, so older documentation still maps correctly. As with the others, a GTM server container is the realistic forwarding path, and it only makes sense if one is already running for your bigger channels. The full setup is in the X (Twitter) Conversion API guide for Shopify.
Does WeltPixel Conversion Tracking support any of these?
No. WeltPixel Conversion Tracking does not support Bing, Pinterest, or X. It covers five channels server-side with a shared event_id for deduplication: GA4, Meta, TikTok, Google Ads, and Reddit. Those five are where the majority of Shopify ad spend concentrates, which is why they get a maintained server-side integration and the three platforms in this article do not.
That gap is the same one a fourth platform sits in. Snapchat has a working conversions API and no native Shopify path either, which is exactly the pattern these platforms share. The Snapchat Conversion API guide for Shopify walks the same "real API, no native channel, workarounds required" territory. If you run any of these four, the honest plan is: browser tag now, GTM server container later if spend justifies it, and WCT for the five channels where it ships complete server-side coverage today.
There is one place the answer changes. If you run Magento 2 rather than Shopify, WeltPixel has native server-side add-ons for Microsoft Ads (Bing UET) and X (Twitter) that ship CAPI directly. Those are Magento-only and separate from the Shopify app. On Shopify, the three platforms here are out of scope for WCT, and the setup paths above are your route.
FAQ
Which of these three is easiest to set up on Shopify?
Pinterest, by a wide margin. It has a native Shopify sales channel that installs the browser tag automatically, while Bing and X both require a manual custom-pixel install. The trade-off is that Pinterest's server-side CAPI status is the one you have to verify, since it varies by channel version.
Does WeltPixel Conversion Tracking track Bing, Pinterest, or X?
No. WCT supports GA4, Meta, TikTok, Google Ads, and Reddit server-side with shared event_id deduplication. Bing, Pinterest, and X are not in scope on Shopify. If you are on Magento 2, WeltPixel has native add-ons for Bing UET and X specifically.
Is the Microsoft UET Conversions API available to everyone?
No. As of 2026 it has been pilot/provisioned, which means Microsoft has to enroll your account before you can send server-side events. Confirm access inside your Microsoft Advertising account before planning a server-side setup, and use the UET browser tag through Custom Pixels in the meantime.
Is the X Conversions API still active after the Twitter rebrand?
Yes. The X Conversions API is live in 2026 and is the same endpoint and event schema as the Twitter era. You configure it in Events Manager inside the X ads dashboard, and X recommends running it alongside the X Pixel with deduplication.
How much ad spend justifies a server-side setup for these platforms?
As a rough rule, under about $500/month on Bing or X the browser tag alone is fine, and Pinterest under roughly $1,000/month is fine on the native channel's browser tag. A GTM server container only pencils out at higher spend, and usually only when one is already running for Meta or Google.
Run server-side on the channels that carry your spend
If most of your budget sits on GA4, Meta, TikTok, Google Ads, or Reddit, WeltPixel Conversion Tracking forwards those server-side with shared event_id deduplication, so a purchase still matches the right click even when browser signal drops. Bing, Pinterest, and X are not covered, and this article is the honest version of why and what to do instead.
Install WeltPixel Conversion Tracking on the Shopify App Store
Sources
- Microsoft Learn. "Universal Event Tracking (UET) Conversions API." https://learn.microsoft.com/en-us/advertising/guides/uet-conversion-api-integration
- Pinterest Developers. "Conversion Events API v5." https://developers.pinterest.com/docs/api/v5/conversion-events/
- X Business. "Conversion tracking and the X Pixel." https://business.x.com/en/help/campaign-measurement-and-analytics/conversion-tracking-for-websites
- Shopify Help Center. "Custom pixels." https://help.shopify.com/en/manual/promoting-marketing/pixels/custom-pixels
- Shopify Help Center. "Pinterest sales channel." https://help.shopify.com/en/manual/online-sales-channels/pinterest