Execution within client &2 of system &1. Host was &3.
Message type: E = Error
Message class: SABP_UNIT_CHECKMAN - Error Texts for Adapter ABAP Unit to CheckMan
Message number: 400
Message text: Execution within client &2 of system &1. Host was &3.
What causes this issue?
Unlike most of the static tests running ABAP Unit may have dependencies
to machine or client where it was executed. So in case you cannot
reproduce a certain error please make sure that you also try the same
system and host.
Error message extract from SAP system. Copyright SAP SE.