HTTP POST Request - Start Jobs

So my payload below works when using a single Robot Id, but when I add multiple it fails with message

{“message”:“Parameter ‘RobotIds’ is invalid.”,“errorCode”:1015,“traceId”:“00-bbe376b24bb87912ccad2a0d644e5e12-813cd216acf57117-00”}

Below is my payload
“{”“startInfo”“: {”“ReleaseKey”“: ““XXXXXX””, ““Strategy””: ““Specific””, ““RobotIds””: [120570, 120635], ““InputArguments””: “”{}”“}}”

Both Robots I am trying with are available and as i said work individually

had you tried RnD done in Swagger?

yes thats where I got all the ID’s from,

[120570, 120635] this should work but doesn’t

[120570] works
[120635] works

can your try

[[120570,120635]]

{“message”:“startJobParameters must not be null”,“errorCode”:0,“traceId”:“00-374491fd7c088f91b4cea89af0d9eb68-477a0ba1d12300c7-00”}

perfect, so we can exclude it. for further RnD we suggest to crosscheck with Postman and Orchestrator HTTP Activity. After a certain effort (Assumption: you have an enterprise licence and are eligible to contact the UiPath Support) raise a Ticket to the UiPath Support Team