diff --git a/src/lib/server/orders-service.ts b/src/lib/server/orders-service.ts
index 14a9143..32e0cde 100644
--- a/src/lib/server/orders-service.ts
+++ b/src/lib/server/orders-service.ts
@@ -682,9 +682,16 @@ export async function getOrdersArchiveData(
     const av = (a as unknown as Record<string, unknown>)[sortKey];
     const bv = (b as unknown as Record<string, unknown>)[sortKey];
     if (av === bv) return 0;
-    if (av === undefined) return 1;
-    if (bv === undefined) return -1;
-    return (av > bv ? 1 : -1) * sortDir;
+    // PB returns `null` for unset fields (e.g. `updated`, `email_body`)
+    // and `undefined` for absent fields. Treat both as "missing"
+    // and sink them to the end of an ascending sort, the start of
+    // a descending sort. Avoids the `av > bv` comparison where one
+    // side is null and TS strict mode rejects the >.
+    if (av == null) return 1;
+    if (bv == null) return -1;
+    if (av > bv) return 1 * sortDir;
+    if (av < bv) return -1 * sortDir;
+    return 0;
   });
 
   const totalItems = filtered.length;
diff --git a/src/lib/server/quotes-service.ts b/src/lib/server/quotes-service.ts
index 01f9afe..6d3a74f 100644
--- a/src/lib/server/quotes-service.ts
+++ b/src/lib/server/quotes-service.ts
@@ -670,9 +670,16 @@ export async function getQuotesArchiveData(
     const av = (a as unknown as Record<string, unknown>)[sortKey];
     const bv = (b as unknown as Record<string, unknown>)[sortKey];
     if (av === bv) return 0;
-    if (av === undefined) return 1;
-    if (bv === undefined) return -1;
-    return (av > bv ? 1 : -1) * sortDir;
+    // PB returns `null` for unset fields (e.g. `updated`, `email_body`)
+    // and `undefined` for absent fields. Treat both as "missing"
+    // and sink them to the end of an ascending sort, the start of
+    // a descending sort. Avoids the `av > bv` comparison where one
+    // side is null and TS strict mode rejects the >.
+    if (av == null) return 1;
+    if (bv == null) return -1;
+    if (av > bv) return 1 * sortDir;
+    if (av < bv) return -1 * sortDir;
+    return 0;
   });
 
   const totalItems = filtered.length;