diff --git a/lms/migrations/versions/712c4c9a4e2e_create_lmsuserassignmentmembership.py b/lms/migrations/versions/712c4c9a4e2e_create_lmsuserassignmentmembership.py
new file mode 100644
index 0000000000..0de9f0b445
--- /dev/null
+++ b/lms/migrations/versions/712c4c9a4e2e_create_lmsuserassignmentmembership.py
@@ -0,0 +1,83 @@
+"""Create LMSUserAssignmentMembership."""
+
+import sqlalchemy as sa
+from alembic import op
+
+revision = "712c4c9a4e2e"
+down_revision = "aea9bbeee574"
+
+
+def upgrade() -> None:
+    op.create_table(
+        "lms_user_assignment_membership",
+        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
+        sa.Column("assignment_id", sa.Integer(), nullable=False),
+        sa.Column("lms_user_id", sa.Integer(), nullable=False),
+        sa.Column("lti_role_id", sa.Integer(), nullable=False),
+        sa.Column("lti_v11_lis_result_sourcedid", sa.String(), nullable=True),
+        sa.Column(
+            "created", sa.DateTime(), server_default=sa.text("now()"), nullable=False
+        ),
+        sa.Column(
+            "updated", sa.DateTime(), server_default=sa.text("now()"), nullable=False
+        ),
+        sa.ForeignKeyConstraint(
+            ["assignment_id"],
+            ["assignment.id"],
+            name=op.f("fk__lms_user_assignment_membership__assignment_id__assignment"),
+            ondelete="cascade",
+        ),
+        sa.ForeignKeyConstraint(
+            ["lms_user_id"],
+            ["lms_user.id"],
+            name=op.f("fk__lms_user_assignment_membership__lms_user_id__lms_user"),
+            ondelete="cascade",
+        ),
+        sa.ForeignKeyConstraint(
+            ["lti_role_id"],
+            ["lti_role.id"],
+            name=op.f("fk__lms_user_assignment_membership__lti_role_id__lti_role"),
+            ondelete="cascade",
+        ),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk__lms_user_assignment_membership")),
+        sa.UniqueConstraint(
+            "assignment_id",
+            "lms_user_id",
+            "lti_role_id",
+            name=op.f("uq__lms_user_assignment_membership__assignment_id"),
+        ),
+    )
+    op.create_index(
+        op.f("ix__lms_user_assignment_membership_assignment_id"),
+        "lms_user_assignment_membership",
+        ["assignment_id"],
+        unique=False,
+    )
+    op.create_index(
+        op.f("ix__lms_user_assignment_membership_lms_user_id"),
+        "lms_user_assignment_membership",
+        ["lms_user_id"],
+        unique=False,
+    )
+    op.create_index(
+        op.f("ix__lms_user_assignment_membership_lti_role_id"),
+        "lms_user_assignment_membership",
+        ["lti_role_id"],
+        unique=False,
+    )
+
+
+def downgrade() -> None:
+    op.drop_index(
+        op.f("ix__lms_user_assignment_membership_lti_role_id"),
+        table_name="lms_user_assignment_membership",
+    )
+    op.drop_index(
+        op.f("ix__lms_user_assignment_membership_lms_user_id"),
+        table_name="lms_user_assignment_membership",
+    )
+    op.drop_index(
+        op.f("ix__lms_user_assignment_membership_assignment_id"),
+        table_name="lms_user_assignment_membership",
+    )
+    op.drop_table("lms_user_assignment_membership")