External API: Not able to disable Facebook distribution while redeploying an order

Steps:
---------
1. Deploy an order to Facebook through External API.
2. Redeploy the same order by including Google and Bing and Removing Facebook from the deployment request.
3. Verify the response.

Expected: Order should deploy successfully to Google and Bing.

Actual: Order is not going to deployment. Seeing Invalid Data message in the response.

{
"code": "INVALID_DATA",
"message": "Invalid data",
"details": [

{ "code": "InvalidCampaign", "field": "isPrimary", "message": "IsPrimary flag is either false at primary campaign or true for multiple campaigns of facebook" }

]
}