API support


Can be deployed under



Sandbox solution provision is enabled via SandboxSolutionDefinition object.

Both CSOM/SSOM object models are supported. Provision checks if object exists looking up it by SolutionId property, then deletes or upload a new object. You can deploy either single object or a set of the objects using AddSandboxSolution() extension method as per following examples.

Here are a few things you need to keep in mind:

  • CSOM uses DesignPackage API
  • FileName must not have "." - DesignPackage API fails to remove file with "."
  • SolutionId must be set, it is used to lookup existing package
  • Content is a byte array, so get it from whatver you wish - local folder or assembly resource
  • Activate must be 'True' for CSOM - DesignPackage API limition


Add sandbox solution

// FileName could be different to the original solution name
// FileName must not have "." to avoid fails (DesignPackage API limitations)

// Content is a byte array, so get ot from whatever source you want

// SolutionId is used to lookup existing sandbox package
// get SolutionId from the VS project or XML inside WSP package

// Activate must be always true for CSOM (DesignPackage API limitations)

var myBranding = new SandboxSolutionDefinition
    FileName = "MyBranding.wsp",
    Content = File.ReadAllBytes("MySandboxBranding.wsp"),
    SolutionId = new Guid("0CDCC076-A472-4DD9-9A1F-0E1E761ED61D"),
    Activate = true,

var myTasks = new SandboxSolutionDefinition
    FileName = "MyTasks.wsp",
    Content = ModuleFileUtils.FromResource(GetType().Assembly, "MyIntranet.Resources.MyTasks.wsp"),
    SolutionId = new Guid("3D279748-92FC-49F9-A6C5-A10FBCD2DB24"),
    Activate = true,

var model = SPMeta2Model.NewSiteModel(site =>