Issue with Reporting API – NullRequest Error When Submitting Campaign Performance Report

Question

Dear Microsoft Advertising Support Team,

I am encountering a persistent "NullRequest" error when attempting to submit a Campaign Performance Report via the Reporting API v13. I would appreciate your assistance in identifying the root cause.

API Endpoint:

POST https://reporting.api.bingads.microsoft.com/Reporting/v13/GenerateReport/Submit

{

"ExcludeColumnHeaders": false,

"ExcludeReportFooter": false,

"ExcludeReportHeader": false,

"Format": "Csv",

"FormatVersion": "2.0",

"ReportName": "My Campaign Performance Report",

"ReturnOnlyCompleteData": false,

"Type": "CampaignPerformanceReportRequest",

"Aggregation": "Daily",

"Columns": [

"AccountName",

"AccountId",

"CampaignName",

"CampaignId",

"Impressions",

"Clicks",

"Ctr",

"AverageCpc",

"Spend",

"Conversions"
```  ],

  "Filter": {

```haskell
"AccountStatus": "Active",

"AdDistribution": "Search",

"DeviceType": "Computer,SmartPhone"
```  },

  "Scope": {

```yaml
"AccountIds": [xxxxxx]
```  },

  "Time": {

```sql
"PredefinedTime": "LastSevenDays"
```  }

}  
  
HTTP Headers:

- `Authorization: Bearer <valid_access_token>`

- `CustomerAccountId: xxxxx`

- `CustomerId: xxxxx`

- `DeveloperToken: <valid_developer_token>`

- `Content-Type: application/json`  
  
Response Received:  
{

```haskell
"OperationErrors": [

  {

    "Code": 100,

    "ErrorCode": "NullRequest",

    "Message": "The request message is null."

  }

],

"TrackingId": "399d1b50-d55e-4237-8f66-041dcddf593b",

"Type": "ApiFaultDetail"
```  }  
    
    
  Despite providing a well-formed JSON payload and valid authentication headers, the API treats the request as null. I’ve verified:
  
- The access token is valid and scoped to [https://ads.microsoft.com/msads.manage]() offline_access.
  
  - All required headers are included.
  
  - The JSON structure matches the [official CampaignPerformanceReportRequest schema ](https://learn.microsoft.com/en-us/advertising/reporting-service/campaignperformancereportrequest?spm=a2ty_o01.29997173.0.0.12e4c921vklcT3&view=bingads-13).  
    
  Could you please:
  
```yaml
    1. Confirm whether the `/GenerateReport/Submit` endpoint accepts direct JSON POST requests?

    
          1. Clarify if there’s an issue with the report definition structure or missing wrapper (e.g., should the payload be nested under a `"ReportRequest"` key)?

          
                1. Investigate using the provided **TrackingId**: `399d1b50-d55e-4237-8f66-041dcddf593b`.

                
Thank you for your support. I look forward to your guidance.


  
Best regards,   
Santosh Sakre