diff --git a/k6-tests/ncmp/common/passthrough-crud.js b/k6-tests/ncmp/common/passthrough-crud.js
index 76bda4e..5617f9d 100644
--- a/k6-tests/ncmp/common/passthrough-crud.js
+++ b/k6-tests/ncmp/common/passthrough-crud.js
@@ -36,6 +36,16 @@
     return response;
 }
 
+export function passthroughReadWithAltId() {
+    const cmHandleId = getRandomCmHandleId();
+    const resourceIdentifier = 'my-resource-identifier';
+    const includeDescendants = true;
+    const datastoreName = 'ncmp-datastore:passthrough-operational';
+    const url = `${NCMP_BASE_URL}/ncmp/v1/ch/alt-${cmHandleId}/data/ds/${datastoreName}?resourceIdentifier=${resourceIdentifier}&include-descendants=${includeDescendants}`
+    const response = http.get(url);
+    return response;
+}
+
 export function passthroughWrite() {
     const cmHandleId = getRandomCmHandleId();
     const resourceIdentifier = 'my-resource-identifier';