Pre Image and Post Image in CRM

POST Image
It would not have any data in the "PRE operation". Only data access in the "POST operation".
 you get the image of the record as is stored in the SQL database before the CRM Platform action has been performed.


PRE Image
It would have data on both "PRE and POST operation".
It  returns the image of the record after the CRM Platform action has been performed.

POSTOperation
	Create	Update	Delete
PRE Image	Y	Y	Y
POST Image	Y	Y	N
PRE Operation
	Create	Update	Delete
PRE Image	N	Y	Y
POST Image	N	N	N

OR

 The following table explains the Pre-Image Availability

The following table explains the Post-Image Availability