diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5b88bfcb..ac452d55 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,8 @@
 
 ## Unreleased
 
-- Fixed a bug that prevent some feeds from importing. ([#786](https://github.com/craftcms/feed-me/issues/786))
+- Fixed a bug that prevented some feeds from importing. ([#786](https://github.com/craftcms/feed-me/issues/786))
+- Fixed a PHP error that would occur when importing into a custom field named `variants`. ([#616](https://github.com/craftcms/feed-me/issues/616))
 
 ## 4.3.3 - 2020-12-10
 
diff --git a/src/elements/CalenderEvent.php b/src/elements/CalenderEvent.php
index 98dae7d1..95009ccc 100644
--- a/src/elements/CalenderEvent.php
+++ b/src/elements/CalenderEvent.php
@@ -90,12 +90,18 @@ public function getMappingTemplate()
      */
     public function init()
     {
+        parent::init();
+
         Event::on(Process::class, Process::EVENT_STEP_BEFORE_ELEMENT_SAVE, function(FeedProcessEvent $event) {
-            $this->_onBeforeElementSave($event);
+            if ($event->feed['elementType'] === EventElement::class) {
+                $this->_onBeforeElementSave($event);
+            }
         });
 
         Event::on(Process::class, Process::EVENT_STEP_AFTER_ELEMENT_SAVE, function(FeedProcessEvent $event) {
-            $this->_onAfterElementSave($event);
+            if ($event->feed['elementType'] === EventElement::class) {
+                $this->_onAfterElementSave($event);
+            }
         });
     }
 
diff --git a/src/elements/CommerceProduct.php b/src/elements/CommerceProduct.php
index e5ce79df..7457ba17 100644
--- a/src/elements/CommerceProduct.php
+++ b/src/elements/CommerceProduct.php
@@ -80,18 +80,26 @@ public function getMappingTemplate()
      */
     public function init()
     {
+        parent::init();
+
         // Hook into the process service on each step - we need to re-arrange the feed mapping
         Event::on(Process::class, Process::EVENT_STEP_BEFORE_PARSE_CONTENT, function(FeedProcessEvent $event) {
-            $this->_preParseVariants($event);
+            if ($event->feed['elementType'] === ProductElement::class) {
+                $this->_preParseVariants($event);
+            }
         });
 
         Event::on(Process::class, Process::EVENT_STEP_BEFORE_ELEMENT_MATCH, function(FeedProcessEvent $event) {
-            $this->_checkForVariantMatches($event);
+            if ($event->feed['elementType'] === ProductElement::class) {
+                $this->_checkForVariantMatches($event);
+            }
         });
 
         // Hook into the before element save event, because we need to do lots to prepare variant data
         Event::on(Process::class, Process::EVENT_STEP_BEFORE_ELEMENT_SAVE, function(FeedProcessEvent $event) {
-            $this->_parseVariants($event);
+            if ($event->feed['elementType'] === ProductElement::class) {
+                $this->_parseVariants($event);
+            }
         });
     }