How can i lock users so the can't get into a transaction

Question

Hi everyone.
I've developed a workflow that updates an status in TCODE PP02.
When user create the infotype, i have a BADI that starts a workflow.
If user want to modify the infotype, it has to tell him that that object is managed by workflow.
Problem is that the workflow has a task that has to update the status of the infotype. Because of BADI, i cannot update because i get the messagte that the object is managed by a workflow.
I have to have 'something' in the BADI that allow me if the object is being edited by a user or by a workflow.
Regards,
Inigo.

Answer 1

Problem is that i must force the user to do it with workflow task.
This is the scenario.
A user creates an infotype. Automaticly, the workflow is ttarted and the task send to users determined by a function module.
Now, because that object is managed by workflow, nobody can change it via tcode. They have to execute the task (which has a call trasaction that do the same that if you access normaly trough its TCODE).
I've made a check in a BADI for users that try to change the infotype via TCODE. They get a message ..'Error, object is in a workflow task' (checked with FM 'SAP_WAPI_WORKITEMS_TO_OBJECT).
The problem is that the task executes a call transaction and the process is the same as if you execute the TCODE 'online'. The FM is called and get the response that the object is in a workflow task.
I need some info (don't know where to get it) that can be searched in the BADI and determine if the user that is executing that BADI is an online user or is a workflow task the one that is executing that BADI.
Regards,
Inigo.