Additionally, there are these general rules that apply to all plugins:
- Plugin assemblies must have a strong name (either fully signed or delay signed).
- The strong name of a plugin assembly (and its types) excluding the version build and revision numbers must be unique in the CRM organization.
- Workflow custom activities are not supported in sandbox mode (isolation).
- Sandboxed assemblies can only be registered in Database.
- Only sandboxed assemblies can be registered in CRM Online.