diff --git a/CRM/Core/Payment/AuthorizeNetIPN.php b/CRM/Core/Payment/AuthorizeNetIPN.php
index 47d130f4461f..1d9f0de5fd3b 100644
--- a/CRM/Core/Payment/AuthorizeNetIPN.php
+++ b/CRM/Core/Payment/AuthorizeNetIPN.php
@@ -9,6 +9,8 @@
  +--------------------------------------------------------------------+
  */
 
+use Civi\Api4\PaymentProcessor;
+
 /**
  *
  * @package CRM
@@ -85,9 +87,6 @@ public function main() {
 
       $ids['paymentProcessor'] = $paymentProcessorID;
       $contribution->loadRelatedObjects($input, $ids);
-      if (empty($contribution->_relatedObjects['paymentProcessor'])) {
-        throw new CRM_Core_Exception("Could not find payment processor for contribution record: " . $contribution->id);
-      }
 
       // check if first contribution is completed, else complete first contribution
       $first = TRUE;
@@ -339,12 +338,18 @@ protected function getContributionRecurObject(string $processorID, int $contactI
    *
    * @return int
    *
+   * @throws \API_Exception
    * @throws \CRM_Core_Exception
    * @throws \CiviCRM_API3_Exception
    */
   protected function getPaymentProcessorID(): int {
     // Attempt to get payment processor ID from URL
-    if (!empty($this->_inputParameters['processor_id'])) {
+    if (!empty($this->_inputParameters['processor_id']) &&
+      'AuthNet' === PaymentProcessor::get(FALSE)
+        ->addSelect('payment_processor_type_id:name')
+        ->addWhere('id', '=', $this->_inputParameters['processor_id'])
+        ->execute()->first()['payment_processor_type_id:name']
+    ) {
       return (int) $this->_inputParameters['processor_id'];
     }
     // This is an unreliable method as there could be more than one instance.
diff --git a/CRM/Core/Payment/BaseIPN.php b/CRM/Core/Payment/BaseIPN.php
index 994ab9a53dc3..dbf43f5c975a 100644
--- a/CRM/Core/Payment/BaseIPN.php
+++ b/CRM/Core/Payment/BaseIPN.php
@@ -153,9 +153,6 @@ public function loadObjects($input, &$ids, &$objects, $required, $paymentProcess
     $contribution = &$objects['contribution'];
     $ids['paymentProcessor'] = $paymentProcessorID;
     $success = $contribution->loadRelatedObjects($input, $ids);
-    if ($required && empty($contribution->_relatedObjects['paymentProcessor'])) {
-      throw new CRM_Core_Exception("Could not find payment processor for contribution record: " . $contribution->id);
-    }
     $objects = array_merge($objects, $contribution->_relatedObjects);
     return $success;
   }
diff --git a/CRM/Core/Payment/PayPalIPN.php b/CRM/Core/Payment/PayPalIPN.php
index bf3981844710..14279e30a768 100644
--- a/CRM/Core/Payment/PayPalIPN.php
+++ b/CRM/Core/Payment/PayPalIPN.php
@@ -360,9 +360,6 @@ public function main() {
       if (!$contribution->loadRelatedObjects($input, $ids)) {
         return;
       }
-      if (empty($contribution->_relatedObjects['paymentProcessor'])) {
-        throw new CRM_Core_Exception("Could not find payment processor for contribution record: " . $contribution->id);
-      }
 
       $input['payment_processor_id'] = $paymentProcessorID;
 
diff --git a/tests/phpunit/CRM/Core/Payment/BaseIPNTest.php b/tests/phpunit/CRM/Core/Payment/BaseIPNTest.php
index a2a59ffeb595..a6cafa18b68f 100644
--- a/tests/phpunit/CRM/Core/Payment/BaseIPNTest.php
+++ b/tests/phpunit/CRM/Core/Payment/BaseIPNTest.php
@@ -315,32 +315,8 @@ public function testLoadPledgeObjects() {
   public function testLoadPledgeObjectsInvalidPledgeID() {
     $this->_setUpPledgeObjects();
     $this->ids['pledge_payment'][0] = 0;
-    try {
-      $this->IPN->loadObjects($this->input, $this->ids, $this->objects, TRUE, NULL);
-    }
-    catch (CRM_Core_Exception $e) {
-      $this->assertEquals('Could not find payment processor for contribution record: 1', $e->getMessage());
-    }
-    $this->assertArrayNotHasKey('pledge_payment', $this->objects);
 
-    $this->ids['pledge_payment'][0] = NULL;
-    try {
-      $this->IPN->loadObjects($this->input, $this->ids, $this->objects, TRUE, NULL);
-    }
-    catch (CRM_Core_Exception $e) {
-      $this->assertEquals('Could not find payment processor for contribution record: 1', $e->getMessage());
-    }
-    $this->assertArrayNotHasKey('pledge_payment', $this->objects);
-
-    $this->ids['pledge_payment'][0] = '';
-
-    try {
-      $result = $this->IPN->loadObjects($this->input, $this->ids, $this->objects, TRUE, NULL);
-      $this->assertArrayHasKey('error_message', $result);
-    }
-    catch (CRM_Core_Exception $e) {
-      $this->assertEquals('Could not find payment processor for contribution record: 1', $e->getMessage());
-    }
+    $this->IPN->loadObjects($this->input, $this->ids, $this->objects, TRUE, NULL);
     $this->assertArrayNotHasKey('pledge_payment', $this->objects);
 
     $this->ids['pledge_payment'][0] = 999;
@@ -368,12 +344,6 @@ public function testSendMailPledge() {
    */
   public function testRequiredWithoutProcessorID() {
     $this->_setUpPledgeObjects();
-    try {
-      $this->IPN->loadObjects($this->input, $this->ids, $this->objects, TRUE, NULL);
-    }
-    catch (CRM_Core_Exception $e) {
-      $this->assertEquals('Could not find payment processor for contribution record: 1', $e->getMessage());
-    }
     // error is only returned if $required set to True
     $result = $this->IPN->loadObjects($this->input, $this->ids, $this->objects, FALSE, NULL);
     $this->assertEquals(TRUE, $result);
@@ -390,21 +360,6 @@ public function testPaymentProcessorLoadsAsParam() {
     $this->assertTrue($this->IPN->loadObjects($this->input, $this->ids, $this->objects, TRUE, NULL));
   }
 
-  /**
-   * Test that an error is returned if required set & contribution page exists
-   */
-  public function testRequiredWithContributionPageError() {
-    $this->_setUpContributionObjects();
-    try {
-      $this->IPN->loadObjects($this->input, $this->ids, $this->objects, TRUE, NULL);
-    }
-    catch (CRM_Core_Exception $e) {
-      $this->assertEquals('Could not find payment processor for contribution record: 1', $e->getMessage());
-    }
-    // error is only returned if $required set to True
-    $this->IPN->loadObjects($this->input, $this->ids, $this->objects, FALSE, NULL);
-  }
-
   public function testThatCancellingEventPaymentWillCancelAllAdditionalPendingParticipantsAndCreateCancellationActivities() {
     $this->_setUpParticipantObjects('Pending from incomplete transaction');
     $additionalParticipantId = $this->participantCreate([