From 99abbb6d211eaf66232927f9be34a176a58e0947 Mon Sep 17 00:00:00 2001
From: Nick Ivanov <103075931+nick-ivanov-edb@users.noreply.github.com>
Date: Tue, 12 Aug 2025 15:27:07 -0400
Subject: [PATCH] Update efm.mdx -- remind about the "upstream" property

It is created by `tpaexec configure`, but if you edit the config file manually and forget to add it, the resulting error message is utterly misleading.
---
 product_docs/docs/tpa/23/reference/efm.mdx | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/product_docs/docs/tpa/23/reference/efm.mdx b/product_docs/docs/tpa/23/reference/efm.mdx
index 678347600e8..17e5c0b40d1 100644
--- a/product_docs/docs/tpa/23/reference/efm.mdx
+++ b/product_docs/docs/tpa/23/reference/efm.mdx
@@ -57,7 +57,10 @@ restart EFM to activate the changes.
 ### EFM witness
 
 TPA will install and configure EFM as witness on instances whose `role`
-contains `efm-witness`.
+contains `efm-witness`. For such instances the `upstream` property must be specified to point
+to the designated primary database instance.
+
+
 
 ### Repmgr