What are stages we have in CRM?

 

There are Four stages in CRM

Event	Stage Name	Description
Pre-Event	Pre-validation	Stage in the pipeline for plug-ins that are to execute before the main system operation. Plug-ins registered in this stage may execute outside the database transaction.
Pre-Event	Pre-operation	Stage in the pipeline for plug-ins that are to execute before the main system operation. Plugins registered in this stage are executed within the database transaction.
Platform Core Operation	Main Operation	In transaction, the main operation of the system, such as create, update, delete, and so on. No custom plug-ins can be registered in this stage. For internal use only.
Post-Event	Post-operation	Stage in the pipeline for plug-ins which are to be executed after the main operation. Plug-ins registered in this stage are executed within the database transaction.