Questions Regarding MRP

[Former Member]

I had a couple of questions regarding MRP. Will be glad if you could answer these:

1. Is it possible to remove the 'in house production time' & 'planned delivery time' from MRP?
   1. If it is possible, what will be the impact of removing the above?
2. Can we change the start/end date of the factory calendar, with or without removing the above?

Please answer the above.

Thank you very much.

Regards

[kiran_kumar179 · Accepted solution]

Mohsin,

Is it possible to remove the 'in house production time' & 'planned delivery time' from MRP?

If it is possible, what will be the impact of removing the above?

In house Production time and Planned delivery time are used for scheduling the Planned order and Purchase requisition respectively during MRP.

If you kept them blank MRP considers zero days to schedule the receipt elements during MRP.

Can we change the start/end date of the factory calendar, with or without removing the above?

Factory calender is been used by MRP to schedule the receipt elements during this process it considers the In house production time for E procurement items to schedule the planned order in basic scheduling.

Same way for procurement items F it considers the planned delivery time to determine the dates in purchase requirement.

So both are independent to each other.

Br

KK

[Former Member · Accepted solution]

Kiran,

Thank you very much. I need to clarify further. Basically we are trying to aligh our actual production plan with the one proposed by the system. So we need further clarification on the following:

1. If we keep inhouse production time and planned delivery time as zero, will this have any other impact?
2. Secondly, is it possible that we can manually change the start and end dates which are suggested electronically by SAP?

These are two independent questions.

Thank you for your help.

Regards

Mohsin

[kiran_kumar179 · Accepted solution]

If we keep inhouse production time and planned delivery time as zero, will this have any other impact?
Secondly, is it possible that we can manually change the start and end dates which are suggested electronically by SAP?

As I said earlier if you keep in house production time as zero system still would allow to create a material master record and based on this MRP calculates the dates required for any planned order in basic scheduling.

If you keep this as zero you order basic start and end  basic date would be on same day.

It is recommended to maintain the no days required for in house produced material in MRP2 or in WS view or you need to enter the setup, tear down, processing, and inter operation times so that based on these values, the system determines the in-house production time on the basis of lot size.

Same way for Planned Delivery Time, only the difference in both of these fields are In house Production time considers the FC where as Planned delivery time considers the calendar days.

For your 2nd Question if you change the system proposed dates in any planned order based on the scheduling type start and end dates would be changes accordingly.

Br

KK