docs/ProfileSubscriptionCreateQueryResourceObjectAttributes.md in klaviyo-api-sdk-5.1.0 vs docs/ProfileSubscriptionCreateQueryResourceObjectAttributes.md in klaviyo-api-sdk-6.0.0

@@ -3,10 +3,10 @@
 ## Properties
 
 | Name | Type | Description | Notes |
 | ---- | ---- | ----------- | ----- |
 | **email** | **String** | The email address to subscribe or to set on the profile if `channels` is specified and the email channel is omitted. | [optional] |
-| **phone_number** | **String** | The phone number to subscribe or to set on the profile if `channels` is specified and the SMS channel is omitted. | [optional] |
+| **phone_number** | **String** | The phone number to subscribe or to set on the profile if `channels` is specified and the SMS channel is omitted. This must be in E.164 format. | [optional] |
 | **subscriptions** | [**SubscriptionChannels**](SubscriptionChannels.md) |  | [optional] |
 
 ## Example
 
 ```ruby