Message SAP WRF_PCM144 - You cannot store structure &1 in table &2

Diagnosis
The system was unable to save an enhancement structure from the IDocsegment E1BPPAREX of the IDoc PRICECATALOGUE02 in the table(WRF_PRICAT_010A or WRF_PRICAT_010S) named in the short text, becausethere is a conflict between keys.

Procedure
Check the IDoc segment in question.