docs: add note about nested extraLogging field in holdout assignment logging (#691)

sameerank · web-flow · commit 88057c408a95 · 2025-07-21T09:52:24.000-07:00
Add a note to the holdout configuration documentation to help users
locate holdout information when their SDK implementation nests it
within the extraLogging field rather than flattening it to the top level.
diff --git a/docs/feature-flagging/concepts/holdout-config.md b/docs/feature-flagging/concepts/holdout-config.md
@@ -100,3 +100,5 @@ class MyAssignmentLogger(AssignmentLogger):
         })
 ```
 
+> **Note:** Some SDK implementations may nest the holdout information within an `extraLogging` field. If you don't see `holdoutKey` and `holdoutVariation` at the top level of the event, check for them in `event.extraLogging.holdoutKey` and `event.extraLogging.holdoutVariation`.
+

-Original file line number
+Diff line change
         })
 ```
 +> **Note:** Some SDK implementations may nest the holdout information within an `extraLogging` field. If you don't see `holdoutKey` and `holdoutVariation` at the top level of the event, check for them in `event.extraLogging.holdoutKey` and `event.extraLogging.holdoutVariation`.
++