diff --git a/classes/monograph/ChapterDAO.php b/classes/monograph/ChapterDAO.php
index 4c03f8eac9d..76f02bf320a 100644
--- a/classes/monograph/ChapterDAO.php
+++ b/classes/monograph/ChapterDAO.php
@@ -318,7 +318,7 @@ public function pubIdExists(string $pubIdType, string $pubId, int $excludePubObj
         return DB::table('submission_chapter_settings AS scs')
             ->join('submission_chapters AS sc', 'scs.chapter_id', '=', 'sc.chapter_id')
             ->join('publications AS p', 'sc.publication_id', '=', 'p.publication_id')
-            ->join('submissions AS s', 'p.submission_id', '=', 's.submisison_id')
+            ->join('submissions AS s', 'p.submission_id', '=', 's.submission_id')
             ->where('scs.setting_name', '=', "pub-id::{$pubIdType}")
             ->where('scs.setting_value', '=', $pubId)
             ->where('sc.chapter_id', '<>', $excludePubObjectId)
diff --git a/classes/plugins/PubIdPlugin.php b/classes/plugins/PubIdPlugin.php
index f8b5188337e..37826a6ced2 100644
--- a/classes/plugins/PubIdPlugin.php
+++ b/classes/plugins/PubIdPlugin.php
@@ -221,19 +221,17 @@ public function getDAOs()
     /**
      * @copydoc PKPPubIdPlugin::checkDuplicate()
      */
-    public function checkDuplicate($pubId, $pubObjectType, $excludeId, int $contextId)
+    public function checkDuplicate($pubId, $pubObject, int $contextId)
     {
-        /** @var ChapterDAO */
-        $chapterDao = DAORegistry::getDAO('ChapterDAO');
-        foreach ($this->getPubObjectTypes() as $type => $fqcn) {
-            if ($type === 'Chapter') {
-                $excludeTypeId = $type === $pubObjectType ? $excludeId : null;
-                if ($chapterDao->pubIdExists($this->getPubIdType(), $pubId, $excludeTypeId, $contextId)) {
-                    return false;
-                }
+        $allowedPubObjectTypes = $this->getPubObjectTypes();
+        if ($pubObject instanceof $allowedPubObjectTypes['Chapter']) {
+            /** @var ChapterDAO */
+            $chapterDao = DAORegistry::getDAO('ChapterDAO');
+            if ($chapterDao->pubIdExists($this->getPubIdType(), $pubId, $pubObject->getId(), $contextId)) {
+                return false;
             }
+            return true;
         }
-
-        return parent::checkDuplicate($pubId, $pubObjectType, $excludeId, $contextId);
+        return parent::checkDuplicate($pubId, $pubObject, $contextId);
     }
 }
diff --git a/classes/press/PressDAO.php b/classes/press/PressDAO.php
index 86fe5e98757..d90df4c39ff 100644
--- a/classes/press/PressDAO.php
+++ b/classes/press/PressDAO.php
@@ -1,4 +1,5 @@
 <?php
+
 /**
  * @file classes/press/PressDAO.php
  *
@@ -106,7 +107,7 @@ public function anyPubIdExists(
         $forSameType = false
     ) {
         $pubObjectDaos = [
-            Application::ASSOC_TYPE_SUBMISSION => Repo::submission()->dao,
+            Application::ASSOC_TYPE_PUBLICATION => Repo::publication()->dao,
             Application::ASSOC_TYPE_CHAPTER => DAORegistry::getDAO('ChapterDAO'),
             Application::ASSOC_TYPE_REPRESENTATION => Application::getRepresentationDAO(),
             Application::ASSOC_TYPE_SUBMISSION_FILE => Repo::submissionFile()->dao,
diff --git a/classes/publicationFormat/PublicationFormatDAO.php b/classes/publicationFormat/PublicationFormatDAO.php
index 9a94ce5047c..e3cda37c496 100644
--- a/classes/publicationFormat/PublicationFormatDAO.php
+++ b/classes/publicationFormat/PublicationFormatDAO.php
@@ -1,4 +1,5 @@
 <?php
+
 /**
  * @file classes/publicationFormat/PublicationFormatDAO.php
  *
@@ -493,6 +494,7 @@ public function pubIdExists(string $pubIdType, string $pubId, int $excludePubObj
             ->join('publications AS p', 'p.publication_id', '=', 'pf.publication_id')
             ->join('submissions AS s', 's.submission_id', '=', 'p.submission_id')
             ->where('pft.setting_name', '=', "pub-id::{$pubIdType}")
+            ->where('pft.setting_value', '=', $pubId)
             ->where('pf.publication_format_id', '<>', $excludePubObjectId)
             ->where('s.context_id', '=', $contextId)
             ->count() > 0;
diff --git a/plugins/pubIds/urn/URNPubIdPlugin.php b/plugins/pubIds/urn/URNPubIdPlugin.php
index d5491b17824..cf090929b7c 100644
--- a/plugins/pubIds/urn/URNPubIdPlugin.php
+++ b/plugins/pubIds/urn/URNPubIdPlugin.php
@@ -286,7 +286,7 @@ public function validatePublicationUrn(string $hookName, array $args): void
         if (strpos($props['pub-id::other::urn'], $urnPrefix) !== 0) {
             $urnErrors[] = __('plugins.pubIds.urn.editor.missingPrefix', ['urnPrefix' => $urnPrefix]);
         }
-        if (!$this->checkDuplicate($props['pub-id::other::urn'], 'Publication', $submission->getId(), $contextId)) {
+        if (!$this->checkDuplicate($props['pub-id::other::urn'], $publication, $contextId)) {
             $urnErrors[] = $this->getNotUniqueErrorMsg();
         }
         if (!empty($urnErrors)) {