diff --git a/src/main/java/io/supertokens/pluginInterface/authRecipe/sqlStorage/AuthRecipeSQLStorage.java b/src/main/java/io/supertokens/pluginInterface/authRecipe/sqlStorage/AuthRecipeSQLStorage.java
index 77f6e89e..eacc4aa2 100644
--- a/src/main/java/io/supertokens/pluginInterface/authRecipe/sqlStorage/AuthRecipeSQLStorage.java
+++ b/src/main/java/io/supertokens/pluginInterface/authRecipe/sqlStorage/AuthRecipeSQLStorage.java
@@ -20,6 +20,7 @@
 import io.supertokens.pluginInterface.authRecipe.AuthRecipeUserInfo;
 import io.supertokens.pluginInterface.exceptions.StorageQueryException;
 import io.supertokens.pluginInterface.multitenancy.AppIdentifier;
+import io.supertokens.pluginInterface.multitenancy.AppIdentifierWithStorage;
 import io.supertokens.pluginInterface.sqlStorage.SQLStorage;
 import io.supertokens.pluginInterface.sqlStorage.TransactionConnection;
 
@@ -58,4 +59,5 @@ void linkAccounts_Transaction(AppIdentifier appIdentifier, TransactionConnection
     void unlinkAccounts_Transaction(AppIdentifier appIdentifier, TransactionConnection con, String primaryUserId, String recipeUserId)
             throws StorageQueryException;
 
+    boolean doesUserIdExist_Transaction(TransactionConnection con, AppIdentifier appIdentifier, String externalUserId) throws StorageQueryException;
 }
diff --git a/src/main/java/io/supertokens/pluginInterface/useridmapping/sqlStorage/UserIdMappingSQLStorage.java b/src/main/java/io/supertokens/pluginInterface/useridmapping/sqlStorage/UserIdMappingSQLStorage.java
new file mode 100644
index 00000000..4d8ab903
--- /dev/null
+++ b/src/main/java/io/supertokens/pluginInterface/useridmapping/sqlStorage/UserIdMappingSQLStorage.java
@@ -0,0 +1,33 @@
+/*
+ *    Copyright (c) 2023, VRAI Labs and/or its affiliates. All rights reserved.
+ *
+ *    This software is licensed under the Apache License, Version 2.0 (the
+ *    "License") as published by the Apache Software Foundation.
+ *
+ *    You may not use this file except in compliance with the License. You may
+ *    obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ *    License for the specific language governing permissions and limitations
+ *    under the License.
+ */
+
+package io.supertokens.pluginInterface.useridmapping.sqlStorage;
+
+import io.supertokens.pluginInterface.exceptions.StorageQueryException;
+import io.supertokens.pluginInterface.multitenancy.AppIdentifier;
+import io.supertokens.pluginInterface.multitenancy.AppIdentifierWithStorage;
+import io.supertokens.pluginInterface.sqlStorage.SQLStorage;
+import io.supertokens.pluginInterface.sqlStorage.TransactionConnection;
+import io.supertokens.pluginInterface.useridmapping.UserIdMapping;
+import io.supertokens.pluginInterface.useridmapping.UserIdMappingStorage;
+
+public interface UserIdMappingSQLStorage extends UserIdMappingStorage, SQLStorage {
+    UserIdMapping getUserIdMapping_Transaction(TransactionConnection con, AppIdentifier appIdentifier, String userId, boolean isSuperTokensUserId)
+            throws StorageQueryException;
+
+    UserIdMapping[] getUserIdMapping_Transaction(TransactionConnection con, AppIdentifier appIdentifier, String userId)
+            throws StorageQueryException;
+}