Azure DevOps API release definition error - api

Question

I am creating azure-devops release pipeline with API, but getting error. I have validated the json as well and is correct from https://jsonlint.com/ Any help would be really appreciated
I have followed this issue as well and retention policy is correctly passed
Azure DevOps API release definition
error: "message": "VS402982: A retention policy is not set for the stage ‘Test-New-2’. Retention policies at the release pipeline level are deprecated. Use a retention policy at the stage level
POST https://vsrm.dev.azure.com/{{organization}}/{{project}}/_apis/release/definitions?api-version=6.0
json body:
"retentionPolicy": {
"daysToKeep": 30,
"releasesToKeep": 3,
"retainBuild": true
},

Answer 1

Yes, it should be the syntax issue, to create a release definition, you could refer to this sample.
Reruest URL:
POST https://vsrm.dev.azure.com/{organization}/{project}/_apis/release/definitions?api-version=6.0
Request Body:
{
"source": "undefined",
"revision": 1,
"description": null,
"createdBy": null,
"createdOn": "0001-01-01T00:00:00",
"modifiedBy": null,
"modifiedOn": "0001-01-01T00:00:00",
"isDeleted": false,
"variables": {},
"variableGroups": [],
"environments": [
{
"id": 0,
"name": "PROD",
"variables": {},
"variableGroups": [],
"preDeployApprovals": {
"approvals": [
{
"rank": 1,
"isAutomated": false,
"isNotificationOn": false,
"approver": {
"displayName": null,
"id": "aeb95c63-4fac-4948-84ce-711b0a9dda97"
},
"id": 0
}
]
},
"postDeployApprovals": {
"approvals": [
{
"rank": 1,
"isAutomated": true,
"isNotificationOn": false,
"id": 0
}
]
},
"deployPhases": [
{
"deploymentInput": {
"parallelExecution": {
"parallelExecutionType": "none"
},
"skipArtifactsDownload": false,
"artifactsDownloadInput": {},
"queueId": 15,
"demands": [],
"enableAccessToken": false,
"timeoutInMinutes": 0,
"jobCancelTimeoutInMinutes": 1,
"condition": "succeeded()",
"overrideInputs": {}
},
"rank": 1,
"phaseType": "agentBasedDeployment",
"name": "Run on agent",
"workflowTasks": []
}
],
"environmentOptions": {
"emailNotificationType": "OnlyOnFailure",
"emailRecipients": "release.environment.owner;release.creator",
"skipArtifactsDownload": false,
"timeoutInMinutes": 0,
"enableAccessToken": false,
"publishDeploymentStatus": false,
"badgeEnabled": false,
"autoLinkWorkItems": false,
"pullRequestDeploymentEnabled": false
},
"demands": [],
"conditions": [],
"executionPolicy": {
"concurrencyCount": 0,
"queueDepthCount": 0
},
"schedules": [],
"retentionPolicy": {
"daysToKeep": 30,
"releasesToKeep": 3,
"retainBuild": true
},
"properties": {},
"preDeploymentGates": {
"id": 0,
"gatesOptions": null,
"gates": []
},
"postDeploymentGates": {
"id": 0,
"gatesOptions": null,
"gates": []
},
"environmentTriggers": []
}
],
"artifacts": [],
"triggers": [],
"releaseNameFormat": null,
"tags": [],
"properties": {},
"id": 0,
"name": "Fabrikam-web",
"projectReference": null,
"_links": {}
}
I test it on my side, it works for me.