To give you more detail.

Status 

Pending    Submit     Reviewer1      Reviewer2     Reviewer3      Release

Here on all the above reviewer is AutoPromote “Yes”.

and for all the Reviewer I have to add approver’s dynamically using code.  
Here Dynamic means i am selecting users from the Page three attribute and add to the next status. So when user clicks on the Reviewer/ Next Status the Approvers will be displayed dynamically.

Status moving from Pending to Submit I am adding approvers  to next status( Reviewer1 ) 
Status moving from Submit to Reviewer1 I am adding approvers  to next status( Reviewer2 ) 
Status moving from Reviewer1 to Reviewer2 I am adding approvers  to next status( Reviewer3) 

Without Autopromote this works fine.

Is there a reason you aren’t using Status Criteria on the workflow to add the approvers instead of custom code?

I had a similar issue. The workaround I found was to leave through CSP (in WF admin) a dummy approver at each review (status type) with auto-promotion, and let the code remove this dummy approver just AFTER adding other approvers have been chosen by the code algorithm. The dummy approver might be a user-group, so it won’t catch an extra user license.

Hi Tal Kobrowski,

adding to my last note i have many reviewers(6) but for eg i said only 3 reviewers.

On which status I have to remove dummy approver.  I am adding the appover to Next status 
CSP (in WF admin) a dummy approver is attaching when moving to the reviewer status. 

for eg:
If the status is moving from Pending to submit add approvers to Reviewer1  ( this works fine No adding dummy approver required)
If the status is moving from Submit  to reviewer1 add approvers to Reviewer2  ( this works fine No adding dummy approver required)
If the status is moving from Reviewer1  to reviewer2 add approvers to Reviewer3  ( Here it will attach only Dummy User not the Dynamic users from Code)

I am using event “Change status for workflow”

Without Autopromote to any of the review status work fine.   and if Auto promote Yes then change.getDefaultNextStatus()  throws null.

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Hi dannypitt,

Here approvers I have to pick Dynamically from the Page 3 List attributes. So I can’t attach the attributes to the  Status Criteria.

Hi Hi Tal Kobrowski,

I am able to add and remove Dummy approver, Partially its working.

Pending    
Submit    
Reviewer1      AutoPromote No
Reviewer2     AutoPromote Yes
Reviewer3     AutoPromote Yes
Reviewer4     AutoPromote No
Reviewer5    AutoPromote Yes
Reviewer6     AutoPromote No 
Release           AutoPromote No
Till Reviewer3 its working fine, From Reviewer4 auto promote “No” but still it is Autopromoting.

Do you have any clue why it is auto-promote.  Let me know something I am missing in the code

Hi Tal Kobrowski,

Thanks, it’s working with work around .