I'm in the process of trying to set up product for MPS and I'm getting a discrepancy between the Available to promise screen and the suggestions of how demand is calculated and consumed which is leading to WO being suggested incorrectly.

For exampleL

The product is a 12 Month Fixed time fence

4 Week planning fence

Manufacture Lead time of 20 days

10000 Safety Stock

Available to promise is showing sales orders correctly within the 4 week fence and off-settting the forecast the forecast correctly after 4 weeks.

Yet the planner looks like this and batches are being calculated the sum off all demand and SO and FC.

I've tried changing so man of the requirement parameters etc and just don't get what i'm missing.

Thanks,