diff --git a/resources/lib/UnityGroup.php b/resources/lib/UnityGroup.php
index ab2c7270..8b0f2143 100644
--- a/resources/lib/UnityGroup.php
+++ b/resources/lib/UnityGroup.php
@@ -218,10 +218,10 @@ public function cancelGroupRequest($send_mail = true)
         $this->SQL->removeRequest($this->getOwner()->getUID());
 
         if ($send_mail) {
-            // send email to requestor
             $this->MAILER->sendMail(
                 "admin",
-                "group_request_cancelled"
+                "group_request_cancelled",
+                ["uid" => $this->getOwner()->getUID()],
             );
         }
     }
@@ -239,7 +239,7 @@ public function cancelGroupJoinRequest($user, $send_mail = true)
             $this->MAILER->sendMail(
                 $this->getOwner()->getMail(),
                 "group_join_request_cancelled",
-                ["group" => $this->pi_uid]
+                ["uid" => $user->getUID()]
             );
         }
     }
diff --git a/resources/mail/group_join_request_cancelled.php b/resources/mail/group_join_request_cancelled.php
index 7fb02df1..3421f198 100644
--- a/resources/mail/group_join_request_cancelled.php
+++ b/resources/mail/group_join_request_cancelled.php
@@ -1,11 +1,5 @@
 <?php
-
-// This template is sent to the user cancelling the request
-$this->Subject = "Unity Account Request Cancelled";
+$this->Subject = "Unity PI Membership Request Cancelled: '" . $data["uid"] . "'";
 ?>
-
 <p>Hello,</p>
-
-<p>Your request to join group '<?php echo $data["group"]; ?>' on the Unity Cluster has been cancelled per your request.
-</p>
-
+<p>The user '<?php echo $data["uid"]; ?>' has cancelled their request to join your PI group.</p>
diff --git a/resources/mail/group_request_cancelled.php b/resources/mail/group_request_cancelled.php
index e143d1d0..73995b56 100644
--- a/resources/mail/group_request_cancelled.php
+++ b/resources/mail/group_request_cancelled.php
@@ -1,10 +1,5 @@
 <?php
-
-// This template is sent to the user cancelling the request
-$this->Subject = "Unity PI Account Request Cancelled";
+$this->Subject = "PI Request Cancelled: '" . $data["uid"] . "'";
 ?>
-
 <p>Hello,</p>
-
-<p>Your request for a PI account on the Unity Cluster has been cancelled per your request.</p>
-
+<p>The user '<?php echo $data["uid"] ?>' has cancelled their request to become a PI.</p>
diff --git a/test/functional/PIMemberRequestTest.php b/test/functional/PIMemberRequestTest.php
new file mode 100644
index 00000000..ec4cff71
--- /dev/null
+++ b/test/functional/PIMemberRequestTest.php
@@ -0,0 +1,54 @@
+<?php
+
+use PHPUnit\Framework\TestCase;
+use UnityWebPortal\lib\UnitySQL;
+
+class PiMemberRequestTest extends TestCase
+{
+
+    private function requestMembership(string $gid)
+    {
+        http_post(
+            __DIR__ . "/../../webroot/panel/groups.php",
+            ["form_type" => "addPIform", "pi" => $gid],
+        );
+    }
+
+    private function cancelRequest(string $gid)
+    {
+        http_post(
+            __DIR__ . "/../../webroot/panel/groups.php",
+            ["form_type" => "cancelPIForm", "pi" => $gid],
+        );
+    }
+
+    public function testRequestMembership()
+    {
+        global $USER, $SQL;
+        switchUser(...getUserIsPIHasNoMembersNoMemberRequests());
+        $pi = $USER;
+        $pi_group = $USER->getPIGroup();
+        $gid = $pi_group->getPIUID();
+        $this->assertTrue($USER->isPI());
+        $this->assertTrue($pi_group->exists());
+        $this->assertTrue(arraysAreEqualUnOrdered([$pi], $pi_group->getGroupMembers()));
+        $this->assertEquals([], $SQL->getRequests($gid));
+        switchUser(...getUserNotPiNotRequestedBecomePi());
+        $uid = $USER->getUID();
+        $this->assertFalse($USER->isPI());
+        $this->assertFalse($SQL->requestExists($uid, UnitySQL::REQUEST_BECOME_PI));
+        $this->assertFalse($pi_group->userExists($USER));
+        try {
+            $this->requestMembership($gid);
+            $this->assertTrue($SQL->requestExists($uid, $gid));
+            $this->cancelRequest($gid);
+            $this->assertFalse($SQL->requestExists($uid, $gid));
+            $this->requestMembership($gid);
+            $this->assertTrue($SQL->requestExists($uid, $gid));
+        } finally {
+            if ($SQL->requestExists($uid, $gid)) {
+                $SQL->removeRequest($uid, $gid);
+            }
+        }
+    }
+}
diff --git a/test/functional/PiBecomeRequestTest.php b/test/functional/PiBecomeRequestTest.php
index d0c1edd2..686b02a3 100644
--- a/test/functional/PiBecomeRequestTest.php
+++ b/test/functional/PiBecomeRequestTest.php
@@ -38,6 +38,16 @@ public function testRequestBecomePi()
         $this->assertFalse($USER->isPI());
         $this->assertNumberPiBecomeRequests(0);
         try {
+            http_post(
+                __DIR__ . "/../../webroot/panel/account.php",
+                ["form_type" => "pi_request"]
+            );
+            $this->assertNumberPiBecomeRequests(1);
+            http_post(
+                __DIR__ . "/../../webroot/panel/account.php",
+                ["form_type" => "cancel_pi_request"]
+            );
+            $this->assertNumberPiBecomeRequests(0);
             http_post(
                 __DIR__ . "/../../webroot/panel/account.php",
                 ["form_type" => "pi_request"]
diff --git a/webroot/panel/account.php b/webroot/panel/account.php
index 14047f3f..79090ecd 100644
--- a/webroot/panel/account.php
+++ b/webroot/panel/account.php
@@ -60,6 +60,9 @@
                 }
             }
             break;
+        case "cancel_pi_request":
+            $USER->getPIGroup()->cancelGroupRequest();
+            break;
         case "account_deletion_request":
             $hasGroups = count($USER->getGroups()) > 0;
             if ($hasGroups) {
@@ -126,9 +129,7 @@
             action=''
             method='POST'
             id='piReq'
-            onsubmit='return confirm(\"Are you sure you want to request a PI account?\")'
         >
-        <input type='hidden' name='form_type' value='pi_request'/>
     ";
     if ($SQL->accDeletionRequestExists($USER->getUID())) {
         echo "<input type='submit' value='Request PI Account' disabled />";
@@ -137,15 +138,21 @@
                 You cannot request PI Account while you have requested account deletion.
             </label>
         ";
-    } elseif ($SQL->requestExists($USER->getUID())) {
-        echo "<input type='submit' value='Request PI Account' disabled />";
-        echo "
-            <label style='margin-left: 10px'>
-                Your request has been submitted and is currently pending
-            </label>
-        ";
     } else {
-        echo "<input type='submit' value='Request PI Account'/>";
+        if ($SQL->requestExists($USER->getUID())) {
+            $prompt = "onclick='return confirm(\"Are you sure you want to cancel this request?\")";
+            echo "<input type='submit' value='Cancel PI Account Request' $prompt'/>";
+            echo "
+                <label style='margin-left: 10px'>
+                    Your request has been submitted and is currently pending
+                </label>
+               <input type='hidden' name='form_type' value='cancel_pi_request'/>
+            ";
+        } else {
+            echo "<input type='hidden' name='form_type' value='pi_request'/>";
+            $prompt = "onclick='return confirm(\"Are you sure you want to request a PI account?\")";
+            echo "<input type='submit' value='Request PI Account' $prompt'/>";
+        }
     }
     echo "</form>";
 }
diff --git a/webroot/panel/groups.php b/webroot/panel/groups.php
index 916acb9e..c51dfede 100644
--- a/webroot/panel/groups.php
+++ b/webroot/panel/groups.php
@@ -40,6 +40,10 @@
                 // Remove PI form
                 $pi_account->removeUser($USER);
                 break;
+            case "cancelPIForm":
+                // cancel Group Join
+                $pi_account->cancelGroupJoinRequest($USER);
+                break;
         }
     }
 }
@@ -74,7 +78,13 @@
         echo "<td>" . $requested_account->getPIUID() . "</td>";
         echo "<td><a href='mailto:" . $requested_owner->getMail() . "'>" . $requested_owner->getMail() . "</a></td>";
         echo "<td>" . date("jS F, Y", strtotime($request['timestamp'])) . "</td>";
-        echo "<td></td>";
+        echo "<td>";
+        echo "<form action='' method='POST' id='cancelPI'>
+            <input type='hidden' name='pi' value='{$requested_account->getPIUID()}'>
+            <input type='hidden' name='form_type' value='cancelPIForm'>
+            <input name='cancel' style='margin-top: 10px;' type='submit' value='Cancel Request'/>
+            </form>";
+        echo "</td>";
         echo "</tr>";
     }
     echo "</table>";