Perform Project MRP
Explanation
This activity is used to perform project material requirements planning with
a single project (project MRP) or with multiple projects (multiproject MRP).
The application creates project MRP planned orders and offers suggestions for
planning orders for optimal manufacturing, considering material availability.
PMRP can be performed per activity by considering one activity
at a time, when calculating net requirements. This means that excess supply
of a part from other activities which are under consideration in the same process,
will not be used to meet shortages in the current activity, and excess supply
belonging to the current activity will not be used to satisfy shortages in other
activities.
PMRP can be performed per project by considering all the
activities belonging to a single project at a time, when calculating net requirements.
This means that any excess supply of a part from one activity in the project
can be used to satisfy the demand for that part in other activities through
MTR’s. However, excess supply in one activity cannot be used to fulfill demand
from another activity which belongs to a different project
PMRP can be performed per PNG by considering all the activities
belonging to a planned netting group (PNG) at a time, when calculating net requirements.
This means that any excess supply of a part from one activity can be used to
satisfy the demand for that part in other activities included in the PNG, through
MTR’s.
Part requirements can be ascertained based on the sources of supply and demand
such as shop orders or customer orders. If project MRP was performed previously,
then all the planned supplies and action messages generated in the previous
process will be removed first. The results of project MRP suggest a process
for fulfilling the demands using, for example, purchase or shop order requisitions.
These results also suggest how to plan orders for optimal manufacturing in view
of material availability. Project MRP plans the supply for all the parts with
a dependent demand. The product or recipe structures of the parts must have
been entered. After the structures are entered, you can run project MRP for
all the parts with a dependent demand. Project MRP considers only company-owned
stock and activity specific requirements. Planning methods B, C, N, O, and T
are excluded by project MRP.
Project MRP can be performed by
integrating with CRP. When performing PMRP alone, it considers site
manufacturing calendar and the registered manufacturing lead time for
the part. When project MRP is performed integrating with CRP, shop
order requisitions generated by PMRP will be backward scheduled and the
start date of shop order requisitions are calculated considering the
relevant work centers/resources and work center connected calendar
availability. In this way more accurate results can be achieved.
After performing project MRP, a succeeding site MRP process can be started.
This will allow the system to plan for standard planned items right away
after demands of project controlled parts get calculated during
the project MRP process. The values of Stop PMRP on Error, MRP Horizon, and
Phantom Part Dependent Demand Message flags will also apply to the
succeeding MRP run. Here, options are available to control MRP input
parameters considering, Plan Safety Stock Receipt considering MRP Run Date
and Plan Alternate Component.
Prerequisites
- Project MRP identifies supply and demand for project MRP parts generated
in the following IFS modules: IFS/Customer Order, IFS/Purchasing, IFS/Project
Master Scheduling, IFS/Shop Order and IFS/Work Order only if those demands
are tagged with PPSA.
- To perform multiproject MRP, a planned netting group must have been
defined in IFS/Project.
Project MRP requires the following general prerequisites:
- Bill of Materials (BOM) must have been defined for the parts, and lead
times for both purchased and manufactured parts must have been established.
The product structures must be in the Plannable or Buildable
status, otherwise the BOM explosion will stop. Project MRP only uses
the existing product structure with the alternate indicated by an asterisk
(*).
- Project MRP calculation will consider inventory parts that have the
MRP Control option enabled on the
Inventory Part/Manufacturing tab.
- Before you can run project MRP, you must go through an extensive set
up in the IFS/Inventory and IFS/Purchasing modules in IFS Distribution.
You must create calendars and attach them to the sites. You must have entered
basic data in IFS Manufacturing and the IFS/Shop Order. Since project MRP
is based on the quantity on hand and planned orders, data must be available
in these components.
- In addition to the basic requirements for project MRP as discussed above,
customer orders, shop orders, and purchase orders for these parts need to
exist. There is much additional information that affects project MRP, and
it is important that you verify this information and its accuracy before
running any calculations.
- Inventory parts with the DOP supply code are managed within DOP.
- Project MRP calculation will consider inventory parts with a part that
allows demand and supply.
- PPSA must be in the Released status.
System Effects
- A new background job for the project MRP process will be started, and
it can be queried for in the
Background Jobs
page.
- After the process is executed, it can get the Error, Warning,
or Ready status.
| Status |
Significance |
| Error |
Some critical errors have occurred.
Project MRP stops the process. |
| Warning |
A message posted for this process
has to be reviewed by the user. This can be done by right-clicking and
then clicking View Detail in the
Background Jobs
window, which displays the posted message in the status information
table. If the user decides to continue the project MRP process when
an error occurs, the system will post a message containing a warning. |
| Ready |
The process completed successfully
without any errors. |
- The project MRP will generate shop order requisitions for the parts
that must be manufactured and purchase requisitions for parts that must
be purchased. Shop order requisition type and purchase requisition IDs are
projectt MRP. Shop order requisitions that are not converted to shop
orders will be deleted in the next project MRP process.
- The project MRP will calculate the lowest level code parts and update
the Low Level on the
Inventory Part/Manufacturing tab.
- In the multiproject MRP process, when a user specifies a planned netting
group (PNG), the system creates a project MRP planned material transfer
requisition (MTR). The multiproject MRP process creates material transfer
requisitions in addition to shop requisitions and purchase requisitions.
MTRs created by the multiproject MRP will have the Manually Created
value set to no.
- When creating MTR, the Generate MTR for Planning Only option
in the Planned Netting
Group page determines the type of MTR that will be created by project
MRP. If the option is enabled, project MRP will create MTR with the Planning
type. If it is disabled, possible MTR types that will be created are:
Transfer, Borrow and Payback.
- If the Generate Safety Stock option is enabled in
Activity Setup Parameters
page, and if the part has safety stock specified in the
Inventory
Part Planning
Data page, then safety stock will be generated for this part and
activity when running project MRP.