Planning Based on Resource Priority and Product Priority

[vijaykumar_swaminathan]

Hi Experts,

We have a scenario here that requires planning of products across multiple lines within the same plant. In a specific plant, I have 3 lines (Line-A, Line-B and Line-C). Products P-01, P-02, P-03, P-04 are produced in each of these lines in the following fashion

Line Priority	Line-A	Line-B	Line-C
1	P-01	P-02	P-01
2	P-02	P-04	P-04
3	P-03	P-03	P-03

The requirement is to have Line-A capacity utilized completely, before assigning demand to Line-B, and utilizing Line-B capacity before assigning demand to Line-C.

The caveat, however, is that all products are not produced on every line available, i.e., Product P-03 is produced in all lines (A, B, & C), Product P-01 is produced only in Line-A and Line-C, and Product P-04 is produced in Line-B and Line-C.

If there is a demand for P-01, P-02, and P-03, then

a. Line-A should be used to Produce P-01. If the capacity is completely utilized, only then product P-r01 should be produced in Line-C

b. Line-A should be used to Produce P-02, (after considering Product P-01 in Line-A) and if the capacity is insufficient, then product P-02 should be produced across Line-A and Line-B

c. If there is also a demand for Product P-04 on the same day as Product P-02 (as in case-b above), then Product P-02 should be produced 1st on Line-B and then Product P-04 should be scheduled on Line-B.

We intend to use the Optimizer to model this scenario however, how can one achieve resource prioritization (independent of product) in this case?

Please suggest the best / optimal way around this problem.

Thanks

Vijay.

[rajkj]

Vijay,

Have you looked into cost maintenance table for optimizer (t.code /sapapo/csnp)? It allows you to define the cost functions for different planning factors so as to apply constraints on the model.

Cost function associated with production plan (PPM/PDS):

Since each mode (activity, resource, and material combination) is available as a separated PDS or PPM, you can set  cost function so that optimizer will respect the constraints. This allows you to control producing same product on different resources. All of your listed requirements can be met with this cost function. However, it needs to be maintained manually and not dependent on resource priority.

Cost function assigned to resources:

This cost function allows you to control which resource can be selected based on the quantity or rate limits.

Thanks,

Rajesh