IAM-0080001 : An error occurred while executing the kernel event handler..

oracle.iam.identity.exception.UserModifyException:
Orchestration process with id 52267, failed with error message IAM-0080001 : An error occurred while executing the kernel event handler..

Can Not Execute userManager.modify method....

Solution:
This is because.. You are trying to update a UDF (e.g. using an external standalone java code) with a value of a type different than that of the UDF's.
That is why it can not execute the kernel event handler.


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oracle.iam.platform.kernel.ValidationFailedException: IAM-3056160:Modify User Profile request cannot set or change attribute


Can Not Execute userManager.modify method....

Solution:
This is because You are trying to update a UDF with a wrong field name.
e.g

To update or modify user organization in OIM,
filed name is "act_key" and not "lov_ds_act_key".
(Also, act_key is of 'long' data type. You will have to give key of the organization to this field lable to update the organization for any user in OIM).

JBO-25058: Definition of attribute-name__c of type Attribute is not found in UserVO

Solution:
If you see this error, which pops up in oim console, then you might not have added the custom UDF in the other forms such as CREATE, VIEW and MODIFY user forms.

And don't forget to restart OIM :)