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MRP Logic -Negative Available quantity in MD04

Former Member
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Hi Experts,

We have negative available quantity in MD04. There are no receipts generated particularly for some period even after MRP Run.

MRP Type is maintained as P1- MRP Fixing type.

Safety time is maintained as 3 days.

Planning strategy is 40.

Please suggest, what would be the reason, why i am not getting schedule lines between 09-Aug and 27-Aug which makes available quantity minus, after that there are generation of schedule lines.

Please help with inputs..

Accepted Solutions (0)

Answers (2)

Answers (2)

Dsk
Active Contributor
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1.Hi since as you are telling that you are maintainging the Planning time fence..is the 3 days that you mentioned querry as safety time is the PTF days?

Former Member
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PTF is maintained as 11 Days...But my problem is, why schedule lines are not generated in the month of august, which is not in Planning time fence.

Later in the moth of september, schedule lines are generated..

Former Member
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Is it due to any bug in the program..?

I am not able to get any relevany for these non-generation of receipts (plannd orders or sch lines) particularly for some period..?

Please help

Former Member
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Hi,

MRP type P1 is used with planning time fence(mandatory).

Have you used pl time fence. How many days? For those period system will not generate any more planned order.

Regards,

Dharma