Purchase Event tag fired but Firing Status Failed

Airi_Nakata · February 8, 2025, 8:32am

Hi everyone,

I had been having an issue with purchase overcounting and I recently reset my Google Tag Manager (GTM) and Stape Server setup for Shopify by following this guide:

Now, in the GTM Server-Side container, I can see all the event tags including Purchase are firing but the firing status is failed. Additionally, I cannot see the test event appearing in Facebook’s Event Manager.

What could cause a “Failed” firing status in GTM Server-Side?

Md_Monirul_Islam · February 8, 2025, 7:28pm

There could be several reasons why a tag fails to fire.

First, ensure that the ‘value’ and ‘currency’ parameters are being sent correctly.

When a tag fails in server GTM, an error message appears in the Outgoing Request under the ‘Request’ tab. To find it:

Click on the ‘Outgoing Request’ for the purchase event
Scroll down to see the error message

Could you share a screenshot of that message? That will help me identify the exact issue and guide you accordingly.

Airi_Nakata · February 9, 2025, 3:18am

Thank you so much for your reply.

Now I cannot even recreate the same situation I explained in the first message.
(I followed the steps explained in this page to apply fb-server.json and fb-web.json template. I completed the setup in the [Stape] _Settings folder)

The server side preview mode looks like this even if I did the test purchase. No add to cart/ initiate checkout/purchase tag not being fired…

Airi_Nakata · February 9, 2025, 3:28am

When I tried setting up with fb-ga4-gads-server.json & fb-ga4-gads-web.json file explained in the stape page ( How to use pre-built GTM container templates for your Shopify store), the preview mode looks like this when I do test purchase:

Now I cannot see Initiate checkout/ purchase tags fired.

Md_Monirul_Islam · February 9, 2025, 6:19am

In the picture, I don’t see begin_checkout, add_payment_info, and purchase event coming into server. Make sure these event is passing from web GTM to server GTM properly. Also check your datalayer if these event is being pushed into datalayer.

Airi_Nakata · February 11, 2025, 2:35am

Sorry for the confusion. Now the situation has changed. I think I was able to setup Web Container to send data to Server Container for CAPI. But when I checked the Event manager, I only saw events from the Server coming in (none from the browser). Does this mean I need to do Pixel setup in the web container?

Airi_Nakata · February 11, 2025, 2:38am

This is what I see in the event manager when testing (sorry that it’s in Japanese but it says each event received from “Server” )

Airi_Nakata · February 11, 2025, 2:39am

The following is the web container tag I downloaded from stape template. I thought Stape FB tags are for pixel set up but they are not?

Md_Monirul_Islam · February 11, 2025, 8:02am

Facebook prefer to send data from both browser-side and server-side. That’s why you need to configure FB pixel tags and FB server tags in your web GTM so that FB receive data from both side (browser and server). Don’t worry FB deduplicate data automatically.

Stape’s template for FB CAPI is great. Just make sure the triggers and variables are configured based on the datalayer you are using. Then you are good to go.

Alex · February 11, 2025, 10:28am

Test events in Meta are very often glitchy. You need to make sure that you have specified your pixel id in the tags on the web container. You can check the work of web events using Meta pixel helper extenstion for Chrome: https://chromewebstore.google.com/detail/meta-pixel-helper/fdgfkebogiimcoedlicjlajpkdmockpc.