To create a field in SAP CRM 7.0 using the AET tool, some settings must first be done using transaction code AXTSYS to define a package for storing extensions. The AET tool can then be used to build a new field which will be saved in the defined package.

1. How to create a field by AET Tool in SAP CRM 7.O
Before creating the field by AET tool we need to do some setting by using Tcode AXTSYS .
Pacage is for storing the extention which we are doing .