SM58 (in ECC) - EDISDEF: Port **** segment defn **** in IDoc type ****
SM21 (in PI) - Transaction Canceled IDOC_ADAPTER 155 ( "port" "segment" "parent segment" )
Root cause:
Inconsistency of IDOC metadata between ECC and PI.
Solution:
- Login into PI ABAP stack
- Open tcode IDX2
- Expand IDOC types and look for parent segment as shown in log (under SM21)
- Delete parent segment
- Execute messages in SM58 in ECC
