diff --git a/docs/endpoints/post-token-generate.md b/docs/endpoints/post-token-generate.md
index 59b0caa6e..2df5c9030 100644
--- a/docs/endpoints/post-token-generate.md
+++ b/docs/endpoints/post-token-generate.md
@@ -23,6 +23,10 @@ The `optout_check` parameter, required with a value of `1`, checks whether the u
 
 Rather than calling this endpoint directly, you could use one of the SDKs to manage it for you. For a summary of options, see [SDKs: Summary](../sdks/summary-sdks.md).
 
+:::important
+Whatever option you use, the data that you send for generating UID2s must be normalized, hashed, and encoded before sending. For details, see [Normalization and Encoding](../getting-started/gs-normalization-encoding.md).
+:::
+
 ## Request Format 
 
 `POST '{environment}/v2/token/generate'`
diff --git a/docs/guides/integration-options-private-operator.md b/docs/guides/integration-options-private-operator.md
index 40020fcb0..3696690f4 100644
--- a/docs/guides/integration-options-private-operator.md
+++ b/docs/guides/integration-options-private-operator.md
@@ -110,6 +110,10 @@ To get started as a Private Operator, follow these steps:
 5. Test.
 6. Go live.
 
+:::important
+Whatever option you use, the data that you send for generating UID2s must be normalized, hashed, and encoded before sending. For details, see [Normalization and Encoding](../getting-started/gs-normalization-encoding.md).
+:::
+
 ## Implementation Resources
 
 The following documentation resources are available for Private Operators to implement UID2.