diff --git a/docs/sql-error-conditions-connect-error-class.md b/docs/sql-error-conditions-connect-error-class.md
index 1371e36144eb4..b110fb9834378 100644
--- a/docs/sql-error-conditions-connect-error-class.md
+++ b/docs/sql-error-conditions-connect-error-class.md
@@ -41,4 +41,8 @@ Cannot instantiate Spark Connect plugin because `<cls>` is missing a default con
 
 Error instantiating Spark Connect plugin: `<msg>`
 
+## SESSION_NOT_SAME
+
+Both Datasets must belong to the same SparkSession.
+