Workflow state change upgrade

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Member II

Workflow state change upgrade

I have existing workflow with 4 user tasks: DRAFT, PENDING_REVIEW_A,  PENDING_REVIEW_B,  and PENDING_APPROVAL.

Sequence Flows are: 

  • DRAFT to PENDING_REVIEW_A (operation = SUBMIT_A), 
  • DRAFT to PENDING_REVIEW_B (operation = SUBMIT_B), 
  • PENDING_REVIEW_A TO PENDING_APPROVAL (operation = REVIEWED_A), 
  • PENDING_REVIEW_B TO PENDING_APPROVAL (operation = REVIEWED_B)

Let's say the existing flow has been used in production for quite sometime and now below changes are to be done:

Changes to user task:

  • Remove PENDING_REVIEW_A,  PENDING_REVIEW_B
  • Add new task PENDING_REVIEW
  • Add sequence flow from RAFT to PENDING_REVIEW (operation = SUBMIT)
  • Add Sequence flow from PENDING_REVIEW to PENDING_APPROVAL (operation = REVIEWED)

The problem I am facing is how to upgrade existing production transactions to new workflow.

  1. How can existing DRAFT and PENDING_APPROVAL tasks can be upgraded to new workflow version?
  2. How can existing PENDING_REVIEW_A and PENDING_REVIEW_B tasks can be upgraded to PENDING_REVIEW task?

Basically it's existing transactional data handling problem in ACT_* tables.

Thanks so much in advance.