Optimizer runs but demand fulfillment rate is 0% , Inv Target fulfillment rate is 0%

[Former Member]

Hi,

We are configuring the optimizer to generate the best fit solution.

TWO customers, ONE DC , TWO PLANTS, TWO products both assembled at one resource

We have uploaded the following data:

1. PMINLOTSIZE , PMAXLOTSIZE

2. TMINLOTSIZE, TMAXLOTSIZE

3. PRODUCTIONCOSTRATE, TRANSPORTATIONCOSTRATE

4. LEADTIMES FOR PRODUCTION, TRANSPORTATION

5. NONDELIVERYCOSTRATE

6. INVENTORYTARGET, INVENTORYTARGETVIOLATIONCOST, MAXINVENTORY

The heuristics is running correctly and generating the key figures for production as per the ratios defined.

However, the optimizer runs without errors but production is nil. Please refer to the log below:

Information	SCMPLAN	9100	Optimizer started
Information	SCMPLAN	9101	Optimizer finished
Information	SCMPLAN	9102	Optimizer found optimal solution
Information	SCMPLAN	9120	Optimizer solving time: 0.01 seconds
Information	SCMPLAN	9121	Optimization problem contains 3321 variables
Information	SCMPLAN	9122	Optimization problem contains 1459 linear constraints
Information	SCMPLAN	9130	Solution information: demand fulfillment rate is 0.00% (not delivered amount: 113799.122013)
Information	SCMPLAN	9131	Solution information: objective function value is 11379999.951299995
Information	SCMPLAN	9132	Solution information: objective function bound is 11379999.951299995 (gap to found solution: 0%)
Information	SCMPLAN	9133	Solution information: total non-delivery costs are 11379912.201299995
Information	SCMPLAN	9143	Solution information: total inventory target violation costs are 87.749999999999972
Information	SCMPLAN	9149	Solution information: inventory target fulfillment rate is 0% (not satisfied amount: 175500)

Thhe Optimizer does not give a feasible solution i.e. production quantities are 0 , have i missed out on any other input KF / setting? Request guidance in this regard.

Best Regards,

Alok Joshi

[carsten_schumm]

Hello Alok,

as Andrew wrote, it looks like some sourcing seems to be missing. To find them please run the unconstrained heuristic and see if you get negative stock levels. Please add according rules (e.g. external receipts) if you see negative stocks.

Another possibility could be missing customer sources (C-rules), or a lack of capacity on your resource.

Hope this helps,

Carsten

[Former Member]

Hi,

Thank you both for your prompt guidance. You are right - there aer issues with our sourcing.

We have configured a supplier to directly ship goods to DC. This entry was made in LOCATIONSOURCE table i.e. FROMLOC: Supplier to TOLOC: DC

However, we had not added the two products with separate source ids in PRODUCTIONSOURCE with U rule. Also, we did not add the EXTERNALRECEIPTCOSTs and related KFs.

After adding this it is working. Thanks once again.

[Former Member]

Hi Alok,

Please make sure you close the thread by marking correct reply as 'answered'.

It helps in tracking the 'real' unanswered posts.

Thanks,

Rohit

[andrew_craven]

Hi Alok,

Sounds like the supply side is choked. The heuristic produces supply receipts whether feasible  or not, but the optimizer won't supply if there's no available capacity (for finite planning) against the resources or the production or location sources are not available. For example, if you're exploding a BOM, is the sourcing of the components correctly defined?

Regards

Andrew