MRP reduce coverage stock

This parameter determines when Material Requirements Planning (MRP) should generate suggestions if coverage periods are used for products managed in stock.

For every transaction in a coverage period, as expressed in weeks, MRP compares the resulting stock level and the reorder lead time with actual requirements (orders). If the stock level on the date of the planning run (MRP processing (FUNMRP / FUNMRPG), Reference date field) plus the reorder lead time is too low, MRP can generate a suggestion. The date for the generated suggestion is the date of the planning run.

No: This is the default value. The MRP process analyzes the requirements inside the coverage period and generates a suggestion to cover demand.

Yes: The MRP process analyzes the requirements inside 1 coverage period and only generates a suggestion at the start of that coverage period. It ignores changes to demand until the start of the next coverage period.

Example

Product A
Coverage: 5 weeks
Safety stock: 0
Start stock: 0
Production lead time: 1 week
Requirements expressed: Per week for 10 weeks

MRP results with MRPRECOVST = No (default)

Coverage is used for products managed in stock. When the MRP process is run with coverage, this means that the requirements inside the coverage period are analyzed in order to issue a global suggestion. Coverage can slide. The suggestion is placed at the start of the coverage period, that is, at the earliest 1 coverage period before the requirement date.

	W0	W1	W2	W3	W4	W5	W6	W7	W8	W9	W10
SOF		50	250	100	50	105	105	150	250	125	125
WOF				100					100
WOS	350	105	105	150	150	125	125
Projected stock	350	405	260	410	510	530	550	400	250	125	0

MRP results with MRPRECOVST = Yes

The requirements inside the coverage period are analyzed in order to issue a global suggestion. The suggestion is placed at the start of each coverage period, that is, at the start of 1 coverage period before the requirement date.

	W0	W1	W2	W3	W4	W5	W6	W7	W8	W9	W10
SOF		50	250	100	50	105	105	150	250	125	125
WOF				100					100
WOS		455					655
Projected stock		405	155	155	105	0	550	400	250	125	0

Level of localization/Global variable

This parameter is defined at the level Site. It belongs to Chapter STO (Inventory) and the Group SCH (Planning), The following parameters are also associated with this chapter and group :

AVGDAY (Average days per month)
AVGWRKDAY (Average work days per month)
DEFPTO (Assignment rule MTO)
FIRWRKDAY (First work day of week)
GPLNFLT (Planner/buyer filter)
GPLNHOR (Default planning horizon)
MPSECCSOF (Process firm SOs in MPS)
MPSECCSOP (Process planned SOs in MPS)
MPSECCSOS (Process suggested SOs in MPS)
MPSPJTSOF (Process firm SOs in MPS)
MPSPJTSOP (Process planned SOs in MPS)
MPSPJTSOS (Process suggested SOs in MPS)
MPSRECOVST (MPS reduce coverage stock)
MPSSECCOV (Safety stock coverage)
MRPECCSOF (Process firm SOs in MRP)
MRPECCSOP (Process planned SOs in MRP)
MRPECCSOS (Process suggested SOs in MRP)
MRPPJTSOF (Process firm SOs in MRP)
MRPPJTSOP (Process planned SOs in MRP)
MRPPJTSOS (Process suggested SOs in MRP)
MRPREOALL (Exclude transfer allocation)
MRPSECCOV (Safety stock coverage)
PLNTWD (Weekly planning structure)
SETITMLLC (Set by-product low level code)

No global variable is associated with it.

Functions concerned

The following functions are associated with this parameter :

Stock > Reorders > MRP processing

Manufacturing > Planning > MRP processing

Comments

The type of suggestions to be generated (work order, purchase order, intersite transfer, or subcontract order) are defined in the MRP Requirements parameters (Setup > Stock > Requirements parameters (GESPCB)).

The facility to move an existing order forward is also defined in the MRP Requirements parameters (Forward lead time field) for each type of suggestion.