Quality release lag
MES → ERP
MES released a quality hold, but the release was not sent to ERP, so ERP has not caught up and the corresponding inventory remains blocked.
Condition: MES hold released; ERP inventory blocked
The hand-off that is missing
ERP
EXPECTED · NOT PRESENT
SCN-X08 is declared across MES and ERP; this record carries no operational link to ERP.
The scenario catalogue names the destination system. No counterpart record exists at Day-0, and none is implied here.
Evidence anchors
Evidence
MES Quality Hold #1 · Coating thickness below limit on the first article · RELEASED
hold released, never sent to ERP
Comparison case
MES Quality Hold #3 · Operator queried a batch dimension; ERP stock held pending the check. · RELEASED
release carried to ERP hold QHLD-2026-000004
Open its cross-system journey
Why this is here
Metrolane Day-0 deliberately includes realistic cross-system delays, duplicate source records and event-ordering conditions. They are verified parts of the frozen reference estate, not accidental data corruption.