Thanks @AndyHess! Unfortunately, the expression method overwrites existing predecessors.    You're right, one expression works {"predecessorExpression":"3,{{23.referenceNumber}}:{{14.taskNumber}}"}   Note for others trying: I had tried these options and they didn't work. Option 1 - only keeps the la...

Sorry to bother you again @AndyHess    I am hoping to resolve this issue soon. I found a way to do it but unfortunately, this way does not allow me to do cross-project predecessor. In the example below, I am finding the previous predecessor (I only have one) then adding it to the list. I tried to ad...

@AndyHess, one more question. Is there a way I can add new predecessors without overwriting what is existing on the task?

Thanks Andy! That worked. I really appreciate your help!

@AndyHess Where is the example? I am looking to do the same thing.