MRP element Data

Hi,

In MRP element Data field of MD04 list I am having a value for eg. 1234567/ PP01/ Re against a production order. My understanding about the Re appearing here is that Order is released. But one of my orders with CRTD status is also having Re against it in MD04. What could be the reason for the same? Whether my understanding is correct or not about Re?

Regards,

Ravi Kumar C.