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How to edit title of a pull request which is already merged in Azure repos?

I have a pull request, which is already marked as "Completed" but I would like to edit the title of that pull request. I cannot find the option to edit it.

I have already searched on different platforms if this option is disabled by any settings but still no luck.

Solution

  • It is not possible to update title of PR that have been completed. You can neither from the web UI nor use Azure DevOps API/CLI to update the title of completed PR.

    I tried to call the API "Pull Requests - Update" to update the title of a completed PR.

    # update-PR.ps1

$organization = "organization name"
$project = "project name"
$repositoryName = "repository name"
$pullRequestId = 71
$newTtitle = "new title of PR"
$pat = "Personal Access Token"

$uri = "https://dev.azure.com/${organization}/${project}/_apis/git/repositories/${repositoryName}/pullrequests/${pullRequestId}?api-version=7.0"

$base64AuthToken = [Convert]::ToBase64String([Text.Encoding]::ASCII.GetBytes(("{0}:{1}" -f "", $pat)))
$headers = @{
    Authorization = "Basic $base64AuthToken"
    "Content-Type" = "application/json"
}

$body = @{title = $newTtitle} | ConvertTo-Json -Depth 5

$updatePR = Invoke-RestMethod -Method PATCH -Uri $uri -Body $body -Headers $headers
Write-Host ($updatePR | ConvertTo-Json -Depth 10)

    It returns the following error message.

    TF401181: The pull request cannot be edited due to its state. enter image description here