Duplicated Add to Cart Events and invalid parameters sent from server

Hi there,

Could you share your System Status Report, it would help us to understand your site setup a bit better. You can find it via WooCommerce > Status. Select Get system report and then Copy for support. Once you’ve done that, paste it here in your reply.

### WordPress Environment ###

WordPress address (URL): https://www.epele.it
Site address (URL): https://www.epele.it
WC Version: 5.6.0
REST API Version: ? 5.6.0
WC Blocks Version: ? 5.5.1
Action Scheduler Version: ? 3.2.1
WC Admin Version: ? 2.5.1
Log Directory Writable: ?
WP Version: 5.8.1
WP Multisite: –
WP Memory Limit: 768 MB
WP Debug Mode: –
WP Cron: ?
Language: it_IT
External object cache: –

### Server Environment ###

Server Info: Apache
PHP Version: 7.4.23
PHP Post Max Size: 256 MB
PHP Time Limit: 120
PHP Max Input Vars: 3000
cURL Version: 7.66.0
OpenSSL/1.1.1l-fips

SUHOSIN Installed: –
MySQL Version: 5.7.32-35-log
Max Upload Size: 256 MB
Default Timezone is UTC: ?
fsockopen/cURL: ?
SoapClient: ?
DOMDocument: ?
GZip: ?
Multibyte String: ?
Remote Post: ?
Remote Get: ?

### Database ###

WC Database Version: 5.6.0
WC Database Prefix: ep19_
Dimensione totale database: 94.04MB
Dimensione dati database: 80.95MB
Dimensione indice database: 13.09MB
ep19_woocommerce_sessions: Dati: 27.09MB + indice: 0.88MB + motore MyISAM
ep19_woocommerce_api_keys: Dati: 0.00MB + indice: 0.00MB + motore MyISAM
ep19_woocommerce_attribute_taxonomies: Dati: 0.00MB + indice: 0.00MB + motore MyISAM
ep19_woocommerce_downloadable_product_permissions: Dati: 0.00MB + indice: 0.00MB + motore MyISAM
ep19_woocommerce_order_items: Dati: 0.21MB + indice: 0.12MB + motore MyISAM
ep19_woocommerce_order_itemmeta: Dati: 1.80MB + indice: 1.22MB + motore MyISAM
ep19_woocommerce_tax_rates: Dati: 0.00MB + indice: 0.00MB + motore MyISAM
ep19_woocommerce_tax_rate_locations: Dati: 0.00MB + indice: 0.00MB + motore MyISAM
ep19_woocommerce_shipping_zones: Dati: 0.00MB + indice: 0.00MB + motore MyISAM
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ep19_woocommerce_shipping_zone_methods: Dati: 0.00MB + indice: 0.00MB + motore MyISAM
ep19_woocommerce_payment_tokens: Dati: 0.00MB + indice: 0.00MB + motore MyISAM
ep19_woocommerce_payment_tokenmeta: Dati: 0.00MB + indice: 0.00MB + motore MyISAM
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ep19_actionscheduler_actions: Dati: 0.27MB + indice: 0.13MB + motore MyISAM
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ep19_actionscheduler_logs: Dati: 0.28MB + indice: 0.19MB + motore MyISAM
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ep19_duplicator_packages: Dati: 0.12MB + indice: 0.00MB + motore MyISAM
ep19_ee_products_sync_list: Dati: 0.02MB + indice: 0.00MB + motore InnoDB
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ep19_icl_translation_downloads: Dati: 0.02MB + indice: 0.00MB + motore InnoDB
ep19_links: Dati: 0.00MB + indice: 0.00MB + motore MyISAM
ep19_options: Dati: 5.19MB + indice: 0.21MB + motore MyISAM
ep19_postmeta: Dati: 33.07MB + indice: 5.73MB + motore MyISAM
ep19_posts: Dati: 3.09MB + indice: 0.98MB + motore MyISAM
ep19_post_views: Dati: 0.00MB + indice: 0.01MB + motore MyISAM
ep19_revslider_css: Dati: 0.09MB + indice: 0.01MB + motore MyISAM
ep19_revslider_css_bkp: Dati: 0.09MB + indice: 0.00MB + motore MyISAM
ep19_revslider_layer_animations: Dati: 0.00MB + indice: 0.00MB + motore MyISAM
ep19_revslider_layer_animations_bkp: Dati: 0.00MB + indice: 0.00MB + motore MyISAM
ep19_revslider_navigations: Dati: 0.00MB + indice: 0.00MB + motore MyISAM
ep19_revslider_navigations_bkp: Dati: 0.00MB + indice: 0.00MB + motore MyISAM
ep19_revslider_sliders: Dati: 0.04MB + indice: 0.00MB + motore MyISAM
ep19_revslider_sliders_bkp: Dati: 0.04MB + indice: 0.00MB + motore MyISAM
ep19_revslider_slides: Dati: 1.16MB + indice: 0.00MB + motore MyISAM
ep19_revslider_slides_bkp: Dati: 1.46MB + indice: 0.00MB + motore MyISAM
ep19_revslider_static_slides: Dati: 0.00MB + indice: 0.00MB + motore MyISAM
ep19_revslider_static_slides_bkp: Dati: 0.00MB + indice: 0.00MB + motore MyISAM
ep19_smush_dir_images: Dati: 0.00MB + indice: 0.00MB + motore MyISAM
ep19_termmeta: Dati: 0.10MB + indice: 0.08MB + motore MyISAM
ep19_terms: Dati: 0.02MB + indice: 0.05MB + motore MyISAM
ep19_term_relationships: Dati: 0.31MB + indice: 0.67MB + motore MyISAM
ep19_term_taxonomy: Dati: 0.03MB + indice: 0.05MB + motore MyISAM
ep19_usermeta: Dati: 0.43MB + indice: 0.25MB + motore MyISAM
ep19_users: Dati: 0.02MB + indice: 0.03MB + motore MyISAM
ep19_wc_admin_notes: Dati: 0.02MB + indice: 0.00MB + motore MyISAM
ep19_wc_admin_note_actions: Dati: 0.01MB + indice: 0.00MB + motore MyISAM
ep19_wc_category_lookup: Dati: 0.00MB + indice: 0.01MB + motore MyISAM
ep19_wc_customer_lookup: Dati: 0.05MB + indice: 0.05MB + motore MyISAM
ep19_wc_download_log: Dati: 0.00MB + indice: 0.00MB + motore MyISAM
ep19_wc_order_coupon_lookup: Dati: 0.01MB + indice: 0.01MB + motore MyISAM
ep19_wc_order_product_lookup: Dati: 0.28MB + indice: 0.25MB + motore MyISAM
ep19_wc_order_stats: Dati: 0.05MB + indice: 0.04MB + motore MyISAM
ep19_wc_order_tax_lookup: Dati: 0.00MB + indice: 0.00MB + motore MyISAM
ep19_wc_product_meta_lookup: Dati: 0.09MB + indice: 0.11MB + motore MyISAM
ep19_wc_reserved_stock: Dati: 0.00MB + indice: 0.00MB + motore MyISAM
ep19_wc_tax_rate_classes: Dati: 0.00MB + indice: 0.01MB + motore MyISAM
ep19_wc_webhooks: Dati: 0.00MB + indice: 0.00MB + motore MyISAM
ep19_woocommerce_bundled_itemmeta: Dati: 0.06MB + indice: 0.05MB + motore MyISAM
ep19_woocommerce_bundled_items: Dati: 0.00MB + indice: 0.00MB + motore MyISAM
ep19_wpr_rucss_resources: Dati: 0.02MB + indice: 0.06MB + motore InnoDB
ep19_wpr_rucss_used_css: Dati: 0.02MB + indice: 0.05MB + motore InnoDB
ep19_yith_wcwl: Dati: 0.25MB + indice: 0.14MB + motore MyISAM
ep19_yith_wcwl_lists: Dati: 0.27MB + indice: 0.27MB + motore MyISAM
ep19_yoast_indexable: Dati: 3.70MB + indice: 0.68MB + motore MyISAM
ep19_yoast_indexable_hierarchy: Dati: 0.07MB + indice: 0.25MB + motore MyISAM
ep19_yoast_migrations: Dati: 0.00MB + indice: 0.01MB + motore MyISAM
ep19_yoast_primary_term: Dati: 0.07MB + indice: 0.09MB + motore MyISAM
ep19_yoast_seo_links: Dati: 0.12MB + indice: 0.04MB + motore MyISAM
ep19_yoast_seo_meta: Dati: 0.02MB + indice: 0.02MB + motore MyISAM

### Post Type Counts ###

attachment: 6474
gsf_content: 90
gsf_template: 10
ig_campaign: 10
ig_message: 13
mc4wp-form: 1
nav_menu_item: 100
oembed_cache: 1
page: 30
post: 16
product: 1205
revision: 107
shop_coupon: 35
shop_order: 685
shop_order_refund: 23
wpcf7_contact_form: 2
xmenu_mega: 1
yith_wcan_preset: 1

### Security ###

Secure connection (HTTPS): ?
Hide errors from visitors: ?

### Active Plugins (32) ###

April Framework: by g5plus – 4.9
Classic Editor: by Contributori WordPress – 1.6.2
Classic Widgets: by WordPress Contributors – 0.2
Contact Form 7: by Takayuki Miyoshi – 5.4.2
Cookie Notice & Compliance for GDPR / CCPA: by Hu-manity.co – 2.1.3
Duplicator: by Snap Creek – 1.4.2
Enhanced E-commerce for Woocommerce store: by Tatvic – 4.1.3
Facebook for WooCommerce: by Facebook – 2.6.4
Icegram - Popups, Optins, CTAs & lot more...: by icegram – 2.0.3
WPBakery Page Builder: by Michael M - WPBakery.com – 6.7.0
Limit Login Attempts Reloaded: by Limit Login Attempts Reloaded – 2.23.1
Loco Translate: by Tim Whitlock – 2.5.3
MC4WP: Mailchimp for WordPress: by ibericode – 4.8.6
Post Views Counter: by Digital Factory – 1.3.5
Really Simple SSL: by Really Simple Plugins – 5.1.0
Regenerate Thumbnails: by Alex Mills (Viper007Bond) – 3.1.5
Slider Revolution: by ThemePunch – 6.5.6
SiteGround Optimizer: by SiteGround – 5.9.6
User Role Editor: by Vladimir Garagulya – 4.60.1
Advanced Order Export For WooCommerce: by AlgolPlus – 3.1.9
WooCommerce Stripe Gateway: by WooCommerce – 5.4.1
WooCommerce Product CSV Import Suite: by WooCommerce – 1.10.41
WooCommerce: by Automattic – 5.6.0
Yoast SEO: by Team Yoast – 17.1
Smush: by WPMU DEV – 3.9.0
WhatsApp Chat PRO: by QuadLayers – 2.5.5
Social Chat: by QuadLayers – 4.9.4
YITH Pre-Order for WooCommerce: by YITH – 1.3.6
YITH WooCommerce Ajax Product Filter: by YITH – 4.1.1
YITH WooCommerce Brands Add-on: by YITH – 1.5.1
YITH WooCommerce Compare: by YITH – 2.5.4.1
YITH WooCommerce Wishlist: by YITH – 3.1.0

### Inactive Plugins (8) ###

Akismet Anti-Spam: by Automattic – 4.1.12
G5Plus Post Like: by g5plus – 1.0
Hello Dolly: by Matt Mullenweg – 1.7.2
WP Instagram Widget: by Scott Evans – 2.0.3
WP Mail SMTP: by WPForms – 3.0.3
WP Rocket: by WP Media – 3.9.2
WP Rocket | WooCommerce Recently Viewed Products Widget Integration: by WP Rocket Support Team –
YITH WooCommerce Catalog Mode: by YITH – 2.0.16

### Dropin Plugins (1) ###

advanced-cache.php: advanced-cache.php

### Settings ###

API Enabled: ?
Force SSL: –
Currency: EUR (€)
Currency Position: left
Thousand Separator: ,
Decimal Separator: .
Number of Decimals: 2
Taxonomies: Product Types: bundle (bundle)
external (external)
grouped (grouped)
simple (simple)
variable (variable)

Taxonomies: Product Visibility: exclude_from_catalog (exclude_from_catalog)
exclude_from_search (exclude_from_search)
exclude-from-catalog (exclude-from-catalog)
exclude-from-search (exclude-from-search)
featured (featured)
outofstock (outofstock)
rated-1 (rated-1)
rated-2 (rated-2)
rated-3 (rated-3)
rated-4 (rated-4)
rated-5 (rated-5)
visible (visible)

Connected to WooCommerce.com: –

### WC Pages ###

Shop base: #17 - /shop/
Carrello: #18 - /cart/
Pagamento: #19 - /checkout/
Il mio account: #20 - /my-account/
Termini e condizioni: #743 - /condizioni-di-vendita/

### Theme ###

Name: G5Plus April Child Theme
Version: 1.0
Author URL: https://g5plus.net
Child Theme: ?
Parent Theme Name: G5Plus April
Parent Theme Version: 5.4
Parent Theme Author URL: https://g5plus.net/
WooCommerce Support: ?

### Templates ###

Overrides: g5plus-april/woocommerce/archive-product.php
g5plus-april/woocommerce/cart/cart-shipping.php
g5plus-april/woocommerce/cart/cart-totals.php
g5plus-april/woocommerce/cart/cart.php
g5plus-april/woocommerce/cart/cross-sells.php
g5plus-april/woocommerce/cart/mini-cart.php
g5plus-april/woocommerce/cart/shipping-calculator.php
g5plus-april/woocommerce/checkout/form-checkout.php
g5plus-april/woocommerce/content-product.php
g5plus-april/woocommerce/content-single-product.php
g5plus-april-child/woocommerce/emails/admin-new-order.php
g5plus-april/woocommerce/global/quantity-input.php
g5plus-april/woocommerce/global/wrapper-end.php
g5plus-april/woocommerce/global/wrapper-start.php
g5plus-april/woocommerce/loop/loop-end.php
g5plus-april/woocommerce/loop/loop-start.php
g5plus-april/woocommerce/loop/no-products-found.php
g5plus-april/woocommerce/loop/rating.php
g5plus-april/woocommerce/loop/result-count.php
g5plus-april/woocommerce/loop/sale-flash.php
g5plus-april/woocommerce/single-product/product-image.php
g5plus-april/woocommerce/single-product/related.php
g5plus-april/woocommerce/single-product/title.php
g5plus-april/woocommerce/single-product/up-sells.php
g5plus-april/woocommerce/single-product.php
g5plus-april/woocommerce/content-product_cat.php

### Action Scheduler ###

Completato: 1.136
Oldest: 2021-09-14 16:38:51 +0200
Newest: 2021-09-15 20:29:29 +0200

In attesa: 1
Oldest: 2021-09-16 19:38:50 +0200
Newest: 2021-09-16 19:38:50 +0200

### Status report information ###

Generated at: 2021-09-15 21:23:58 +02:00

Hello @sirio345

Thanks for your response!

These errors appear to be about a known bug that has been reported to the Facebook for WooCommerce developers. You can learn more about this bug here: https://github.com/facebookincubator/facebook-for-woocommerce/issues/1777

The recommended steps for getting around this issue are the following:

* Check that your pixel is connected. This Chrome extension created by Facebook will verify that your Facebook pixel is working properly.
* Make sure there aren’t any browser extensions blocking Facebook user agent and IP addresses
*Enable debug logging and see if you are getting any obviously errors

If this does not work to resolve the problem, I would recommend enabling logging in the extension:

Head to Marketing > Facebook. And enable debug mode at the bottom of the screen and save the settings After this, repeat the steps to replicate the error.

Thank you!

Hello thanks for the response I checked the thread on git hub and followed every step you suggested. Consider also that we already enabled the “debug logging” into the facebook for woocommerce plugin settings to see if there were obvious errors. The log is extremely long but apparently the are not obvious errors or warnings. Can you specify what kind of error I’d have to check for in the log?
If you prefer I can share the complete log.

Hi again,

Is there a way to understand what parameter is wrong and how to avoid server events duplication?

In general I would also try and disable all caching. That can also effectively derail analytics and other tracking events. I can see you SiteGround Optimizer: by SiteGround – 5.9.6 active. This also adds caching, correct?

The log is extremely long but apparently the are not obvious errors or warnings. Can you specify what kind of error I’d have to check for in the log?
If you prefer I can share the complete log.

Yes, typically it would be one of these: https://www.facebook.com/business/help/490934944618455?id=1205376682832142 – for example missing event name or duplicate event detected, that would cause a fumble.

If you prefer I can share the complete log.

Sure, I would recommend something like: https://justpaste.it or similar. You can also let content uploaded there expire: https://d.pr/i/8KguTw

Kind regards,

Hello again, regarding the cache it is one of the first thing we checked. WP rocket has been disabled for over two weeks now and also the Siteground optimizer has all the settings deactivated so it shold not interfere. Anyway to be sure I have now deactivated also SG optimizer plugin.

here is the link with one of the latest facebook for woocommerce log
https://justpaste.it/ls/8yu5i/rad4ybx90vcm495w

hope this can help
regards

Howdy,

Hello again, regarding the cache it is one of the first thing we checked. WP rocket has been disabled for over two weeks now and also the Siteground optimizer has all the settings deactivated so it shold not interfere. Anyway to be sure I have now deactivated also SG optimizer plugin.

Gotcha. We have had cases where remnant cached files were still being served. If you can have a look around via FTP maybe as well. For example: https://docs.wp-rocket.me/article/133-manually-clear-wp-rocket-cache – screenshot: https://d.pr/i/TmmKTa

here is the link with one of the latest facebook for woocommerce log

Thank you. That does look good like you said. You are on the most recent plugin version, the correct API version. There is only some minor errors such as: body: {"error":{"message":"(#100) Could not find Product Item for catalog id which should correct itself. That all looks ok to me.

Let’s turn back to your initial remark: “Is there a way to understand where this huge amount of duplicated “server events” come from and optimize the deduplication of the server events only?”

Could you post that server events list + browser events list that made you check on this in the first place? Maybe something sticks out.

Kind regards,

Hello again,
Regarding the cache I deleted all the wp rocket cache folder and deactivated SG plugin let’s see if something change.
Regarding server events list apparently from facebook there is no way to see or export that list.
We only have a metric that indicate that the quality of event correspondance is very very low and can interfere with the results of the campaign (and it does impact the results, because since the problem first appeared the results of the ads campaign are very very bad)
here is a link to see the screenshot from facebook
https://justpaste.it/ls/92vjo/mxlw399i8x31fdl8
consider that of 602 add to cart events only 4 were from browser and true according to google analitycs data.
That metric changes from time to time one day is for add to cart events the other form search events. The problem is always a huge numer of server events compared to browser events.
In the facebook business manager they suggest to keep high the percentage of “deduplication” of the events but does not give insights on how to configure that parameter. Actually the deduplication percentage is around 14% for browser event and only 6% on server events. Do you know if those percentage can be modified?
Do you think that deactivating plugin or reconfiguring the connection with the catalog something can change?
Thanks for your support
S.

btw – I see that this issue is reported already many times and noone seemed to be able to resolve it. My ads stopped working in June – I am not sure if there is a sense in running them again if API is not working properly

Have you tried turning off the automatic event tracking as detailed here?

https://www.facebook.com/business/help/555177831677798?id=1205376682832142

I’m not really an expert on Facebook’s Event Manager myself, but it seems like that might cut down on the server events perhaps?

Let us know, thanks!

Unfortunately nothing worked for us and also the support from facebook itself was almost useless in pointing us to the right solution. We decided for now to deactivate the plugin and insert the pixel code manually. We will evaluate to use the plugin again in the future if the bugs tha impact us will be resolved.
thanks for support

sirio345 – could you let me know here if that solution worked? Will be grateful as we are in the same place.

Hi @sirio345,

Thanks for the update and your patience while we try to help you resolve the issue. Sorry to hear that you didn’t have much luck.

Since you’ve decided to no longer use the plugin, I’ll close this thread for now, but feel free to reopen it if you ever want to dig back into it.

@namaste24,

Feel free to start your own support thread here. Let us know what you’ve already tried and we’d be happy to continue assisting you. ??