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Material requirements planning (MRP) (REQ003A)

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This selection program is used for material requirements planning (MRP). The system calculates the requirement through a batch job. The end result consists of time scheduled order proposals. The items that are listed in the MRP are those that are set up accordingly in the Item file:

  • Requirement calc is set to YES.
  • Planning method is set to 2 (MRP) or 7 (MRP, Supply plan).
  • Item type is set to either 1 (end item), 2 (sub-assembly), 3 (material), or 4 (purchased).
  • An Order rule is defined.

Note: To ensure validity of the output, the MRP should be calculated regularly.

Simulation version
The simulation version and description. This field is only valid for simulations. Leave this field blank if you are creating an active version.
Sim capacity version
The capacity simulation version to be used for the capacity creation. This field is only valid for simulations. Leave this field blank if you are creating an active version.
Variant
This field is only displayed if Variant handling is set to YES in the MFG control. This is the structure variant to be used for calculation of lower level requirements and for creation of planned workload. If the entered structure is missing the main variant (000) will be used.
Supply plan version
The code that identifies the supply plan version.
Gross requirements
Indicates if quantity on hand will be taken into consideration when creating requirements.
Supply plan forecast
Indicates if a supply plan forecast version is selected.
Sales order
Indicates if sales order lines will be selected if the following is valid:

  • The dispatch date of the sales order line is less than or equal to the date entered in the Horizon date field on this panel.
  • The Update stock on hand field is set to YES in the Sales order type table.
  • Quantity that is not dispatched exists.
Include held sales
Indicates if held sales orders should be included in the calculation.
Include sales return
Indicates if credit sales orders defined with update stock on hand should be included in the MRP calculation.
Manufacturing order
Indicates if manufacturing orders and bill of material will be selected if the following is valid:

  • The status of the manufacturing order is 00 – 40.
  • The start date and/or planned issue date of the manufacturing order are less than or equal to the date entered in the Horizon date field on this panel.
Purchase order
Indicates if purchase order lines will be selected if the following is valid:

  • The purchase order status is not 60.
  • The dispatch date of the purchase order line is less than or equal to the date entered in the Horizon date field on this panel.
  • The Update stock on hand field is set to YES in the Purchase order type table.
Sales quotation
Indicates if sales quotation lines will be selected if the following is valid:

  • The sales quotation is active and the Incl demand field is set to YES in the Quotation header.
  • Quotation type is 1 (normal quotation) or 3 (service quotation).
Manual reservations
Indicates if manual reservations will be selected, if the following is valid:

  • The reservation date is less than or equal to the date entered in the Horizon date field on this panel.
Horizon date
The horizon date. This is the final date for completion of the requirements which are included in the run.
Netting period
The netting period. This is used when both forecast and customer orders are used as input to MRP. Depending on the Forecast period type, the netting period is divided into either months or weeks. If Inventory Control is installed and activated the forecast period type is retrieved from the Forecast period type field in the IC control file. If not, the forecast period type will be retrieved from the Sales/SOP period field in the MFG control file. Note: Only customer orders are considered as input to MRP before the netting period end date (= the last date of the period).
Incl fcst in netting
Indicates if forecast inside the netting period should be included in the calculation. Mandatory entry if Supply plan forecast is set to YES.
Netting option
Indicate how the forecast should be netted against the sales order.

Valid codes are:

Code Description
1 Remaining forecast for present period is calculated according to how many days that is left for the period. Based on the remaining forecast, the open sales order will be used for the forecast netting.
2 Total forecast for the present period. Open and delivered sales order for present period will be used for netting the total forecast to remaining forecast in the period.
Include safety stock
Indicates if safety stock is to be included in the calculation of order proposals.
Use order rule
Indicates if the order rule that is defined on the item is to be used during order proposal calculation. If this field is set to NO, all items will be handled as discreet requirements (order rule 1).
Start date calc
The code indicates if the requirement start date will be calculated using the item’s lead time or using the total needed operation time.

Valid codes are:

Code Description
1 Lead time
2 Bill of routing
Divide forecast
The code indicates how the requirement forecast should be divided. Mandatory entry if Supply plan forecast is set to YES.

Valid codes are:

Code Description
1 Divide forecast according to the period interval defined in the IC control file.
2 Divide forecast to week.
3 Divide forecast to day.
Recalculate ll code
Indicates if low level code for items included in item structures will be recalculated.
Create workload
Indicates if planned workload should be created. If this field is set to NO, any existing planned workload will be deleted. If set to YES, planned workload will be created and workload for all manufacturing orders will be re-created. Note: If capacity has been changed workload will be created based on the new capacity but all dates on operations and order head will remain unchanged.
Re-sch ind days (late)
The number of re-schedule indication days determines what manufacturing or purchase orders can be ignored by the system when re-schedule proposals are created. The indication days are counted after (late) the requirement date of the proposal. This is used to avoid the re-scheduling of manufacturing or purchase orders for which the requirement date has been slightly changed. If the change is within the defined number of days, no re-schedule proposal will be created for the manufacturing or purchase order.
Re-sch ind days (early)
The number of re-schedule indication days determines what manufacturing or purchase orders can be ignored by the system when re-schedule proposals are created. The indication days are counted before (early) the requirement date of the proposal. This is used to avoid the re-scheduling of manufacturing or purchase orders for which the requirement date has been slightly changed. If the change is within the defined number of days, no re-schedule proposal will be created for the manufacturing or purchase order.
Proposal in passed
Indicate if calculated order proposal could be created in passed time or not. If this field is set to YES, proposals will be created according to the demands requirement date. If this field is set to NO, proposals will not be created in passed time, i.e., the lowest requirement date will be current date, and based on the requirement date the start date will be calculated.

Error list

If the calculation of low level code ends in error, a list is printed. The following fields define the printing parameters for the error list: