From ac80e7af41748013a126bdeb8e95043700f2a6c1 Mon Sep 17 00:00:00 2001
From: Marian Cepok <marian.cepok@neuland-bfi.de>
Date: Fri, 8 Jan 2021 07:55:38 +0100
Subject: [PATCH] Don't overwrite custom user defined event id

---
 core/src/core.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/src/core.ts b/core/src/core.ts
index e16bf227e..867e02195 100644
--- a/core/src/core.ts
+++ b/core/src/core.ts
@@ -782,8 +782,8 @@ export function trackerCore(base64: boolean, callback?: (PayloadData: PayloadDat
     tstamp?: Timestamp,
     afterTrack?: (Payload: PayloadDictionary) => void
   ): PayloadData => {
-    sb.addDict(payloadPairs);
     sb.add('eid', v4());
+    sb.addDict(payloadPairs);
     const timestamp = getTimestamp(tstamp);
     sb.add(timestamp.type, timestamp.value.toString());
     const allContexts = attachGlobalContexts(sb, context);