When an EDI Inbound relationship flow fails at the CP_Splitter activity, there are a few conditions that may have cause the issue -
1. When ISA segment length is incorrect in the source file.
2. When ISA segment control number mismatch in ISA and IEA.
3. When Control number mismatch in group segment i.e. GS and GE.
4. When Transaction set count is incorrect in GE.
5. When Group segment count is incorrect in IEA.