ActionMessageMaxPostponementInterval
Possible values:
{'PT15M'|'PT30M'|'PT1H'|'PT2H'|'PT4H'|'PT6H'|'PT8H'|
'PT12H'|'P1D'|'P2D'|'P3D'|'P5D'|'P7D'|'P15D'|'P30D'}