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Heuristic Planning in advance

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Hello All,

 

I'm facing following issue where SNP PReqs are created in advance or well before lead time.

 

Demand is in September 06 2015 for qty:2182

total lead time is 50 days

 

Expected start date to be around 13th July 2015

 

but heuristic is planning this demand for two different quantities as follows;

 

Qty 1870 to start on April 22nd 2015 and Qty 312 to start on April 29 2015

SNP_PReq.jpg

 

I have checked all planning relevant calendars (factory & TS calendars) they are fine. No holidays, no downtimes etc.

 

No min or max lot size defined in MAT1.

 

What could be the reason for this behaviour?

 

Any suggestion/help is much appreciated.

 

thanks.

 



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