Hello gregy68980908
As you already have a group in AEM, the user logging in to AEM would be added as a member to this group if the SAML response contains the appropriate group attirubte. You will have to identify the group attribute and make sure that the SAML configuration in AEM looks for that group attribute. For example
If my SAML response contains the following
<saml2:Attribute Name="group" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:unspecified">
<saml2:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="xs:string">developer</saml2:AttributeValue>
<saml2:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="xs:string">aneetsgroup</saml2:AttributeValue>
</saml2:Attribute>
Then my SAML configuration should contain group as a value for the "Group Membership" field.
Best Regards,
Aneet Arora