[kuldahar]

Hello everyone
I would like to ask if there is any way to roll back the process in the PM, that is, someone has mistakenly sent the process to the next step, and then the handler can return the process to the handler of the previous step. Is there an interface or method that comes with the system, instead of drawing a return line on the flowchart?

[hekmati]

according PM documentation you can create a trigger to that to go to previous task:

$c = new Cases();
$aStepInfo = $c->getPreviousStep();
if (is_array($aStepInfo))
G::header("Location: {$aStepInfo['PAGE']}");
else
G::header('Location: cases_List');

[amosbatto]

The above code works to go to a previous step (Dynaform, Input or Output Document) within the current task. If you want to return to a previous task in the case, then you will need to delete the records for those tasks in the APP_DELEGATION and APP_CACHE_VIEW tables in the database.

Then change the record for the task to be reopened. Change APP_DELEGATION.DEL_THREAD_STATUS and APP_CACHE_VIEW.DEL_THREAD_STATUS from 'CLOSED' to 'OPEN'. Change APP_DELEGATION.DEL_FINISH_DATE and APP_CACHE_VIEW.DEL_FINISH_DATE to NULL. (Note: you can also use the PMFUnCancelCase() function to do this in a trigger.)

This will move the case back to the previous task, but all the data entered in the subsequent tasks will remain in the case. If you want to delete that data, then you need to change variables stored in the APPLICATION.APP_DATA field, which are stored in a serialized format.

If you don't want to change the database, you can change the process to add a loopback to the previous task:

This means that you will need to have a variable that can be checked in a condition to loop back to the previous task.
You can use Value Based Assignment or Manual Assignment in the task which is being returned to if the task needs to be assigned to the same user as before.

[kuldahar]

IT WORKS！THANKS hekmati and amosbatto. YOU are the BEST!