TaxJar Error displayed to customers on success page

[JeremyAtMethodMarketing]

Prerequisites

• [ *] Are you running the latest version of our extension?
• [ *] Have you reviewed our integration guide?
• [ *] Did you search through existing issues?

Description

I am on magento 2.4.6-p1 and using TaxJar magento2 extension 2.2.0. We are now on PHP 8.1-fpm. At checkout people are seeing deprecation notices and they believe that their orders are not being processed. They are going through but the notice is very concerning. I am also seeing that orders are not syncing to taxjar. We have not had an order sync since Dec 13, 2023.

Deprecated Functionality: Creation of dynamic property TaxJar\SalesTax\Model\Transaction\Order::$apiKey is deprecated in /html/vendor/taxjar/module-taxjar/Model/Transaction/Order.php on line 108

Steps to Reproduce

1. Upgrade php and magento 2 version to 2.4.6
2. Install taxjar 2.2.0
3. place an order

Expected Result

No error message on screen shown to customers and order being synced to taxjar.

Actual Result

Orders not being synced and customers seeing deprecation notices on checkout success page.

Versions

• [* ] Magento 2.4
• Magento 2.3

• [* ] Magento Open Source (fka Magento 2 Community Edition)
• Adobe Commerce (fka Magento 2 Enterprise Edition)

• PHP 8.2
• [* ] PHP 8.1
• PHP 7.4
• PHP 7.3

[fweb]

@JeremyAtMethodMarketing Did you guys ever figure out a solution? I don't want to upgrade to taxjar 2.2.0 if this is unresolved. Thx

[JeremyAtMethodMarketing]

@fweb no I haven't been able to find a solution and I haven't heard any from tech support.

[SAN1TAR1UM]

This error means they failed to declare the $apiKey before trying to access it on line 108. You should implement the following composer patch, you don't want to modify the core file directly.

diff --git a/vendor/taxjar/module-taxjar/Model/Transaction/Order.php b/vendor/taxjar/module-taxjar/Model/Transaction/Order.php
index 875d0c0..7dafc91 100644
--- a/vendor/taxjar/module-taxjar/Model/Transaction/Order.php
+++ b/vendor/taxjar/module-taxjar/Model/Transaction/Order.php
@@ -31,6 +31,8 @@ class Order extends \Taxjar\SalesTax\Model\Transaction
 
     protected const SYNCABLE_COUNTRIES = ['US'];
 
+    protected $apiKey;
+
     /**
      * @var OrderInterface|AbstractModel
      */

[SAN1TAR1UM]

Actually I like this solution much better: #366 (comment)

[SAN1TAR1UM]

taxjar_fix_apikey.patch