If you are not familiar with setting up SAML service provider in DualShield, please refer to the wiki below:

Integrate with SAML-enabled services

In the DualShield Admin Console, navigate to "SSO | Servicer Providers"

Click "Create" to create a new service provider

SSO ServerSelect the Single Sign-on Server that will serve this new service provider 
ApplicationSelect the application that you have created for this Power App
NameEnter a descriptive text
TypeChoose "SAML 2.0"
Metadatasee below
SAML OptionsEnable "Sign on SAML Assertion"


Follow the instruction below to create the metadata data

Click "Create Metadata"

Copy and Paste the metadata

Click "Save"

Click "Attribute"

Click "Create"

LocationChoose "HTTP Body"
NameEnter "http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress"
FormatChoose "urn-oasis:names:tc:SAML:2/.0:attrname-format-unspecified"
Maps to Select "Email"
Return in ResponseEnabled

Click "Save"

Click "Save"