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AWS neptune documentation change

Service: neptune · 2026-06-25 · Documentation low

File: neptune/latest/userguide/get-started-prereqs.md

Summary

Added clarification about inline policy size limitations and requirement for customer-managed policies

Security assessment

Addresses IAM policy management best practices but doesn't relate to security vulnerabilities or introduce new security features. Focuses on policy size constraints.

Diff

diff --git a/neptune/latest/userguide/get-started-prereqs.md b/neptune/latest/userguide/get-started-prereqs.md
index 3f13fac95..bdb7b7532 100644
--- a//neptune/latest/userguide/get-started-prereqs.md
+++ b//neptune/latest/userguide/get-started-prereqs.md
@@ -33,0 +34,4 @@ Finally, you need to create the following customer-managed policy and add it to
+###### Important
+
+You must create this as a _customer-managed policy_ , not as an inline policy. The total size of all inline policies for an IAM user cannot exceed 2,048 non-whitespace characters, and this policy exceeds that limit. For more information, see [IAM and STS character limits](https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_iam-quotas.html#reference_iam-quotas-entity-length) in the _IAM User Guide_.
+