| sequence definition (PP-PI) |
A process instruction that you use at the start of a phase to specify that this phase can only be processed in the PI sheet after you have finished processing another phase.
By generating sequence definitions automatically, you can copy the phase relationships entered in the process order to the PI sheet.
In the PI sheet, the process instructions of the phase containing the sequence definition remain inactive until all message data has been reported for the predecessor phases.
The system only recognizes phases from the same PI sheet.