Error: At Transformation <transformation name>. One of the concatenating pipelines contains a Transaction Control Transformation. This mapping is no longer valid since TCT is an active transformation. Please move the TCT before or after the concatenation.
The upgraded mapping contains a pipeline branch with a Transaction Control transformation that concatenates with another branch in the same pipeline. This mapping is no longer valid in PowerCenter.
Edit the mapping and move the Transaction Control transformation either before or after the concatenation.