# Table of contents:

• Introduction
• Authentication
  • Using Cookies
  • Using SOAP
• Actions
  • Actions that we don't know much about
• Shared Templates
  • Client/Request
    • soap:Envelope
      • soap:Header
        • StorageApplicationHeader
        • StorageUserHeader
        • AffinityCacheHeader
      • soap:Body
  • Server/Response
    • soap:Envelope
      • soap:Header
        • AffinityCacheHeader
        • StorageUserHeader
      • soap:Body

# Introduction

The Schematized Storage Service (SchematizedStore) is a SOAP (XML) Web Service. It was introduced with MSNP11, but is required for roaming in MSNP15.

It stores data relating to a user.

It's default HTTP URL is http://storage.msn.com/storageservice/schematizedstore.asmx.
It's default HTTPS URL is https://tkrdr.storage.msn.com/storageservice/SchematizedStore.asmx.

# Authentication

This service requires Passport Authentication, either using Passport SSI 1.4 or Passport SOAP (RST).

There are two ways to authenticate.

# Using Cookies

The easiest way to authenticate is by setting the MSPAuth cookie to the MSPAuth value from your Passport Compact Token (everything after t= and before &p=)

This can be done using a token for either storage.msn.com or messenger.msn.com.

# Using SOAP

Clients from MSNP15 and up use SOAP to authenticate with the service. See the StorageUserHeader section for more info.

This method of authentication only works with a token for storage.msn.com.

# Actions

All actions listed have the prefix of http://www.msn.com/webservices/storage/, followed by the version, for example: w10.
Not much is known about the differences between versions of the service.

• UpdateProfile
• CreateRelationships
• DeleteRelationships
• CreateDocument

# Actions that we don't know much about

• GetItemVersion
• GetProfile
• CreateProfile
• FindDocuments
• UpdateDocument
• ShareItem

# Shared Templates

This is used by all Actions listed, as far as we know.

# Client/Request

The following sub-headings are XML elements for the client's request.

# soap:Envelope

This element has three attributes:

• xmlns:soap: Is always set to http://schemas.xmlsoap.org/soap/envelope/.
• xmlns:xsi: Is always set to http://www.w3.org/2001/XMLSchema-instance.
• xmlns:xsd: Is always set to http://www.w3.org/2001/XMLSchema.

There may be one optional attribute:

• xmlns:soapenc: Is always set to http://schemas.xmlsoap.org/soap/encoding/. (This usually shows up if the client is using version 8 or higher of the Official Client.)

# soap:Header

This element has two required children and only one optional child:

• <StorageApplicationHeader>
• <StorageUserHeader>
• <AffinityCacheHeader> (optional)

# StorageApplicationHeader

This element has only one attribute:

• xmlns: Is always set to http://www.msn.com/webservices/storage/, followed by the version of the schema.

This element has only one required child and only one optional child:

• <ApplicationID>: The client used, usually in the form of "Messenger Client x.y", where x.y is the client version, usually 8.0.
• <Scenario> (optional): What caused this request to happen:
  • Initial: This is the initial request to this action.
  • RoamingIdentityChanged: The identity associated with a roaming profile was changed by the user.
  • Timer: This request was done automatically on a timer.

# StorageUserHeader

This element has only one attribute:

• xmlns: Is always set to http://www.msn.com/webservices/storage/, followed by the version of the schema.

This element has only one child and many optional children:

• <Puid> Unused. This is always set to 0.
• <TicketToken> (optional): This element contains the XML-encoded Passport Compact token for storage.msn.com (see above). Added since MSNP15.
• <UserAuthCache> (optional): Possibly an authentication token? (seen in Official Client 7.0-7.5)
• <IPAddress> (optional): Possibly the user's IP address? (seen in Official Client 7.0-7.5)

# AffinityCacheHeader

This element has only one attribute:

• xmlns: Is always set to http://www.msn.com/webservices/storage/, followed by the version of the schema.

This element has only one child:

• <CacheKey>: The last cache version the client has received.

# soap:Body

Your request element and it's children goes here.

# Server/Response

The following sub-headings are XML elements for the server's response.

# soap:Envelope

This element has three attributes:

• xmlns:soap: Is always set to http://schemas.xmlsoap.org/soap/envelope/.
• xmlns:xsi: Is always set to http://www.w3.org/2001/XMLSchema-instance.
• xmlns:xsd: Is always set to http://www.w3.org/2001/XMLSchema.

# soap:Header

This element only holds the server versions of <AffinityCacheHeader> and <StorageUserHeader>.

# AffinityCacheHeader

This element has only one attribute:

• xmlns: Is always set to http://www.msn.com/webservices/storage/, followed by the version of the schema.

This element has only one child:

• <CacheKey>: The current or new storage caching key.

# StorageUserHeader

This element has only one attribute:

• xmlns: Is always set to http://www.msn.com/webservices/storage/, followed by the version of the schema.

This element has multiple children and only one optional child:

• <Puid> Unused. This is always set to 0.
• <Cid> The user's Common ID.
• <ApplicationId> Unused. This is always set to 0.
• <DeviceId> Unused. This is always set to 0.
• <TicketToken> (optional): This element contains the XML-encoded Passport Compact token for storage.msn.com (see above).
• <IsTrustedDevice>: Unused. This is always set to false.
• <IsStrongAuth>: Unused. This is always set to false.
• <IsAdmin>: Unused. This is always set to false.
• <LanguagePreference> Unused. This is always set to 0.
• <Claims> Unused. This element is always empty.

# soap:Body

This element contains the server's response elements and their children for the action.