Pipeline CI/CD Azure DevOps

How about this?

trigger:
- main

pool:
  vmImage: 'windows-latest'

variables:
  SolutionName: "SOL"
  DevEnvironmentUrl: "orgXXXXXXX.crmXX.dynamics.com"
  RecipeEnvironmentUrl: "org0000000.crmXX.dynamics.com"

steps:
# Step 1: Install PAC
- script: |
    echo "Installing PowerApps CLI (PAC)..."
    npm install -g pac-cli
  displayName: "Install PAC"

# Step 2: Verify PAC Installation
- script: |
    pac version
  displayName: "Verify PAC Installation"

# Step 3: Check Output Directory Before Export
- script: |
    echo "Checking output directory before export:"
    if not exist "$(Build.ArtifactStagingDirectory)\Solution" (
        echo "Directory does not exist. Creating directory."
        mkdir "$(Build.ArtifactStagingDirectory)\Solution"
    ) else (
        echo "Directory already exists."
    )
  displayName: "Check or Create Output Directory"

# Step 4: Export Solution from Development Environment
- script: |
    pac auth create --url $(DevEnvironmentUrl) --name DevEnvironment
    pac solution export --name $(SolutionName) --output-folder "$(Build.ArtifactStagingDirectory)/Solution" --managed
    if %ERRORLEVEL% neq 0 exit /b %ERRORLEVEL%
    echo "Export completed. Check if the .zip file was created."
  displayName: "Export Solution from Development Environment"

# Step 5: Check Exported Files
- script: |
    echo "Contents of the output directory after export:"
    dir "$(Build.ArtifactStagingDirectory)/Solution"
  displayName: "Check Exported Files"

# Step 6: Copy Exported Files
- task: CopyFiles@2
  inputs:
    SourceFolder: '$(Build.ArtifactStagingDirectory)/Solution'
    Contents: '**'
    TargetFolder: '$(Build.ArtifactStagingDirectory)/Solution'
  displayName: "Copy Exported Files"

# Step 7: Publish Solution Artifacts
- task: PublishBuildArtifacts@1
  inputs:
    PathtoPublish: '$(Build.ArtifactStagingDirectory)/Solution'
    ArtifactName: 'SolutionExported'
  displayName: "Publish Solution Artifacts"

# Step 8: Import Solution to Test Environment
- script: |
    pac auth create --url $(RecipeEnvironmentUrl) --name RecipeEnvironment
    pac solution import --path "$(Build.ArtifactStagingDirectory)/Solution/$(SolutionName).zip"
  displayName: "Import Solution to Test Environment"

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Please try the below mentioned steps

1. Environment Authentication - Ensure that pac auth create is successfully authenticating with your development environment (DevEnvironmentUrl). Check for authentication-related errors.

2. Solution Name Validation - Verify that the SolutionName (SOL) exists in your PowerApps development environment. An incorrect name will prevent the export.

3. Output Path - Check that the output folder path ($(Build.ArtifactStagingDirectory)/Solution) is correctly resolved. Add a debug step to display the path.

4. Error Handling in Export Command - Ensure the pac solution export command is not silently failing. Add detailed logging to confirm its execution.

5. CLI Installation - Confirm that the pac-cli is correctly installed and functioning by manually running pac version in the pipeline.

trigger:
- main

pool:
  vmImage: 'windows-latest'

variables:
  SolutionName: "SOL"
  DevEnvironmentUrl: "https://orgXXXXXXX.crmXX.dynamics.com"
  RecipeEnvironmentUrl: "https://org0000000.crmXX.dynamics.com"

steps:
# Step 1: Install PAC
- script: |
    echo "Installing PowerApps CLI (PAC)..."
    npm install -g pac-cli
  displayName: "Install PAC CLI"

# Step 2: Verify PAC Installation
- script: |
    echo "PAC Version:"
    pac version
  displayName: "Verify PAC Installation"

# Step 3: Ensure Output Directory Exists
- script: |
    echo "Ensuring output directory exists..."
    mkdir "$(Build.ArtifactStagingDirectory)\Solution"
  displayName: "Create Output Directory"

# Step 4: Export Solution from Dev Environment
- script: |
    pac auth create --url $(DevEnvironmentUrl) --name DevEnvironment
    echo "Authenticating to Dev Environment..."
    pac solution export --name $(SolutionName) --output-folder "$(Build.ArtifactStagingDirectory)/Solution" --managed
    if %ERRORLEVEL% neq 0 (
        echo "Solution export failed!"
        exit /b %ERRORLEVEL%
    )
    echo "Solution export completed."
  displayName: "Export Solution from Dev Environment"

# Step 5: Debug Output Directory Content
- script: |
    echo "Contents of output directory:"
    dir "$(Build.ArtifactStagingDirectory)\Solution"
  displayName: "Debug Output Directory"

# Step 6: Copy Exported Files
- task: CopyFiles@2
  inputs:
    SourceFolder: '$(Build.ArtifactStagingDirectory)/Solution'
    Contents: '**'
    TargetFolder: '$(Build.ArtifactStagingDirectory)/Solution'
  displayName: "Copy Exported Files"

# Step 7: Publish Artifacts
- task: PublishBuildArtifacts@1
  inputs:
    PathtoPublish: '$(Build.ArtifactStagingDirectory)/Solution'
    ArtifactName: 'SolutionExported'
  displayName: "Publish Solution Artifacts"

# Step 8: Import Solution to Test Environment
- script: |
    pac auth create --url $(RecipeEnvironmentUrl) --name RecipeEnvironment
    echo "Authenticating to Test Environment..."
    pac solution import --path "$(Build.ArtifactStagingDirectory)/Solution/$(SolutionName).zip"
    if %ERRORLEVEL% neq 0 (
        echo "Solution import failed!"
        exit /b %ERRORLEVEL%
    )
    echo "Solution import completed."
  displayName: "Import Solution to Test Environment"