EDISDEF:Port segment defn in SM58

EDISDEF: Port SAPRQ3 segment defn E2BPACHE04004 error in SM58 of ECC

you observe IDOC failing with status EDISDEF: Port SAPRQ3 segment defn  in SM58

Solution:

Check IDX1 and IDX2 in target system
recreated the meta data reference for  and run Cache refresh….fixed the issue