Client software distribution extension keys Client software distribution (CSD) extension keys allow you to customize the deployment and revocation of software from distribution providers. These pre-defined keys allow you to generate input variables for workflows that deploy and revoke software from external distribution providers: SetDeploymentData: Sets the software order information and generates the input variables for the deployment workflow. SetRevocationData: Generates the input variables for the revocation workflow. CheckRevocable: Specifies the conditions that determine if an installation can be revoked. If the software configuration associated with the installed software allows uninstallation, the installed software can be revoked.