From a0bb0c1e20f4ba56d69dd52c6a717a02b2608098 Mon Sep 17 00:00:00 2001
From: 4gl <@>
Date: Tue, 2 Jun 2026 13:56:53 +0100
Subject: [PATCH] info about casuser lib

---
 docs/libraries.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/docs/libraries.md b/docs/libraries.md
index ba5b6df..26acabd 100644
--- a/docs/libraries.md
+++ b/docs/libraries.md
@@ -26,6 +26,9 @@ Library definitions should be added in the `autoexec.sas` of the designated Comp
 
 If the above is not feasible, it is possible to insert code in the `[DC Drive Path]/services/settings.sas` file however - this will have a performance impact due to the additional API calls.
 
+!!! note
+    The CASUSER library must be assigned, as it is used to store temporary in-memory tables during CAS data updates.
+
 ## SAS 9 EBI Libraries
 
 In most cases, libname statements are NOT required so long as they are accessible in metadata.