Hi,
What pipeline data you are trying to update.
Suppose you have published one publishable document (say tempDocument) to start your BPM process.Now are you trying to update some fields in this document in the subsequent step in process depending some condition in this step.If so,have you try to update data this document in service execution task step.I think here it should be able to update this document and changes in this document will be available from the next step.
Thanks
Baharul Islam
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