AET tips

How to generate(or regenerate) AET extension which was in error?
Go to tcode AXTSHOW and give extension and click on regenerate

How to modify AET field ?
AXT_EXT_PART_DTL  (Table) - In this table, you can modify field name (or properties) and then regenerate using tcode AXTSHOW. 
Note: If you change field name, then a new field will be created, then make sure u delete the old field from appropriate structures (like CI_EXTBUT000, CI_EXTBUT000_X etc).. Also, delete entries in Transport for old field name.

CRM IC - Alert messages - Intent driven

To setup Alert messages in boxes shown below, we need to do this in Intent-Driven interactions and alerts.

After configuring services, make sure Business role is assigned with this service manager profile in functional profile ‘INTENT_DRIVEN_INTERACTIONS’.

In IC_MANAGER role, we need to configure rule policy for alerts. Here we can use services as attributes in conditions.  Services will have associated class (SE24) where Execute method will determine if it is passed (value 1) or not. This way it can be used in conditions.