Error Creating Outlook Rule with Graph API when using conditions fromAddresses

Question

When creating a rule in which a condition of email coming from a specified sender, the following error message is generated by the Graph API:

Status code: 400, Response: {"error":{"code":"UnableToDeserializePostBody","message":"were unable to deserialize "}}

The following payload was sent to the Microsoft Graph API:

Endpoint:

https://graph.microsoft.com/v1.0/users/{user_email}/mailFolders/inbox/messageRules

{ 
        "displayName": "Supervisor Manager Tag",
        "sequence": 1,
        "isEnabled": "true",
        "conditions": {"fromAddresses": [{"emailAddress": {"name": "The Boss", "address": "boss@organization.com"}}]},
        "actions": {
            "flag": {
                "flagStatus": "flagged",
                "flagColor": "#FF0000"
            },
            "assignCategories": ["Blue category"]
        }
    
    }

Answer 1

The Graph Inbox rule endpoint only provides a subset of the full rules action that you can do in either the Outlook desktop client or Outlook on the web. So in your example using

            "flag": {
                "flagStatus": "flagged",
                "flagColor": "#FF0000"
            },

the flag action isn't available in the Graph API in v1.0 or beta the documentation list the available actions https://learn.microsoft.com/en-us/graph/api/resources/messageruleactions?view=graph-rest-1.0 or if you check it MessageruleActions in the metadata eg

<ComplexType Name="messageRuleActions">
<Property Name="assignCategories" Type="Collection(Edm.String)"/>
<Property Name="copyToFolder" Type="Edm.String"/>
<Property Name="delete" Type="Edm.Boolean"/>
<Property Name="forwardAsAttachmentTo" Type="Collection(graph.recipient)"/>
<Property Name="forwardTo" Type="Collection(graph.recipient)"/>
<Property Name="markAsRead" Type="Edm.Boolean"/>
<Property Name="markImportance" Type="graph.importance"/>
<Property Name="moveToFolder" Type="Edm.String"/>
<Property Name="permanentDelete" Type="Edm.Boolean"/>
<Property Name="redirectTo" Type="Collection(graph.recipient)"/>
<Property Name="stopProcessingRules" Type="Edm.Boolean"/>
</ComplexType>

EWS also doesn't support that action https://learn.microsoft.com/en-us/exchange/client-developer/web-service-reference/actions . The only Exchange API that does would be Mapi through the Tag action https://www.dimastr.com/redemption/rdo/rdoruleaction.htm#RDORuleActionTag

Otherwise look at subscriptions and build an app to modify the item.