Using SendGrid in Azure B2C getting BadRequest - azure-ad-b2c

Question

So I am using Sendgrid to send a validation code during password reset. I am able to get this to work great. After the Flow is completed I want to send another email letting them know the password was changed.
I am getting a bad request. But I think this is just because im doing something wrong in passing my claims.
my password reset flow is as follows.
<!--Sub Journey for Password Reset-->
<SubJourneys>
<SubJourney Id="PasswordReset" Type="Call">
<OrchestrationSteps>
<!-- Validate user's email address. -->
<OrchestrationStep Order="1" Type="ClaimsExchange">
<ClaimsExchanges>
<ClaimsExchange Id="PasswordResetUsingEmailAddressExchange" TechnicalProfileReferenceId="LocalAccountDiscoveryUsingEmailAddress" />
</ClaimsExchanges>
</OrchestrationStep>
<!-- Show TOU-->
<OrchestrationStep Order="2" Type="ClaimsExchange">
<ClaimsExchanges>
<ClaimsExchange Id="SelfAssertedConsentExchange" TechnicalProfileReferenceId="SelfAsserted-PasswordResetConsent" />
</ClaimsExchanges>
</OrchestrationStep>
<!-- Collect and persist a new password. -->
<OrchestrationStep Order="3" Type="ClaimsExchange">
<ClaimsExchanges>
<ClaimsExchange Id="NewCredentials" TechnicalProfileReferenceId="LocalAccountWritePasswordUsingObjectId" />
</ClaimsExchanges>
</OrchestrationStep>
<OrchestrationStep Order="4" Type="ClaimsExchange">
<ClaimsExchanges>
<ClaimsExchange Id="SendPasswordChangeNotification" TechnicalProfileReferenceId="SendPasswordChangedEmail" />
</ClaimsExchanges>
</OrchestrationStep>
</OrchestrationSteps>
</SubJourney>
</SubJourneys>
This flow fails on orchestration step 4
my SendGrid Claims Transformation
<ClaimsTransformation Id="GenerateEmailChangedBody" TransformationMethod="GenerateJson">
<InputClaims>
<InputClaim ClaimTypeReferenceId="email" TransformationClaimType="personalizations.0.to.0.email" />
<InputClaim ClaimTypeReferenceId="email" TransformationClaimType="personalizations.0.dynamic_template_data.email" />
</InputClaims>
<InputParameters>
<!-- Update the template_id value with the ID of your SendGrid template. -->
<InputParameter Id="template_id" DataType="string" Value="template ID"/>
<InputParameter Id="from.email" DataType="string" Value="me#email.com"/>
<!-- Update with a subject line appropriate for your organization. -->
<InputParameter Id="personalizations.0.dynamic_template_data.subject" DataType="string" Value="Account Password Changed"/>
</InputParameters>
<OutputClaims>
<OutputClaim ClaimTypeReferenceId="email" TransformationClaimType="outputClaim"/>
</OutputClaims>
</ClaimsTransformation>
and finally my Technical Profile
<TechnicalProfile Id="SendPasswordChangedEmail">
<DisplayName>Use SendGrid's email API to send the code the the user</DisplayName>
<Protocol Name="Proprietary" Handler="Web.TPEngine.Providers.RestfulProvider, Web.TPEngine, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" />
<Metadata>
<Item Key="ServiceUrl">https://api.sendgrid.com/v3/mail/send</Item>
<Item Key="AuthenticationType">Bearer</Item>
<Item Key="SendClaimsIn">Body</Item>
<Item Key="ClaimUsedForRequestPayload">emailRequestBody</Item>
</Metadata>
<CryptographicKeys>
<Key Id="BearerAuthenticationToken" StorageReferenceId="B2C_1A_SendGridAPIKey" />
</CryptographicKeys>
<InputClaimsTransformations>
<InputClaimsTransformation ReferenceId="GenerateEmailChangedBody" />
</InputClaimsTransformations>
<InputClaims>
<InputClaim ClaimTypeReferenceId="email" />
</InputClaims>
</TechnicalProfile>
In my mind I think the customers email is not getting passed into the claim, and if thats the issue, I really not sure how to do that.
Any insight is useful!
Thank you!