CTM not respecting resource capacity

[Former Member]

Hi

We have a SNP CTM run setup to bring demand from DC to plant, which is the only source for this DC-material. There is a PDS at the plant with a mixed resource. The result is that we have demand carried to plant and planned orders are created at the plant

There is a lot of demand at DC and only some of the demand is sent to plant. We in fact have set the day's supply to 6 days at DC but the system is not able to build up to 6 days at DC. Interestingly when we look at SNP capacity leveling view, the resource is not being utilized 100% and only for two buckets, utilization is going over the 100%.

Reviewing the settings within CTM profile ( Let's call these as initial settings):

1. in Supplies tab, we have selection for "Consider Safety Day's supply" as "Consider, if possible"

2. in Special strategies, we have Capacity Planning " Use setting from Resource"

When I change the Consider Safety Day's supply to always consider, it still did not bring up the day's supply at DC to 6 days and the utilization is still the same, resource is not being utilized 100% and only for two buckets, utilization is going over the 100%.

When I change the setting for capacity to "consider all resources to be infinite", the results are accurate: the DC has atleast 6 days of supply, the resource at plant is never utilized over 100% and is infact mostly about 85-99% utilized in all buckets.

This seems to be contradicting what CTM is supposed to do. Any ideas on what may be going wrong?

Also want to add one more thing to the equation, there is a component for the material we are planning at plant and that has a resource, PDS too in APO. We see that when we have the situation where we have initial settings as explained above, the component's resource is utilized at almost 100% all the time. When we try out setting the option to consider all resources infinitely, this component's resource is getting over utilized ( above 100%).

Does component's capacity drive finished product's production in SNP CTM run? I believe only PPDS has that capability to run bottomsup planning.

Any suggestions are appreciated.

[Former Member · Accepted solution]

Hi KA,

Are you in MTO or MTS scenario?

Planning w/o final assembly in CTM

CTM supports planning without final assembly. The same constraints which are vaild for for PP/DS are also valid for CTM. Additionally SNP has only display access to those planned orders. For displaying the order BAdi SAPAPO/SDP_INTERACT, Method: GET_KEYF_SPECIALS needs to be activated. In addition all constraints for PP/DS are also valid for CTM:

- FCST w/o Final Ass. is only valid for the first level of the BOM

- Safety Stock will be created only for the make-to-stock-segment

- CTM supports FCST w/o Final Ass. only for inhouse production

- Only demands in the make-to-stock-segment can consume stock.

Thanks, Marius

Message was edited by: Marius Talos

[Former Member · Accepted solution]

we are in Make to stock and using Planning with Final assembly ( ECC strategy 40), with atp check enabled

[Former Member · Accepted solution]

Try this settings to plan for the futures buckets (not just for the 2 buckets).

Stupid question but at resource level is the option for finite capacity selected?

[Former Member · Accepted solution]

Hi marius

We have Domino strategy but the late demand fulfilment is only for 31 days not 999. The resource has the Finite scheduling checked.

[Former Member · Accepted solution]

Hi KA,

For testing propose change to 999.

Also be sure that the below statement is verified.

Thanks, Marius 

PPM/PDS in CTM Planning

The following constraints apply:

- Activities need to be in linear sequence

- Breaks between activies can only be modeled for PP/DS PPMs, except the function "Maximum interval between activities" allows a global break value in SNP PPM (The function can be found in the CTM Profile Tab Setting - Master Data Setting - Inhouse production)

- Activity relation only: END -START supported

- No support for set up matrixes; utilization parameter; set up activity

- The output of the head component, i.e. the output of the location-product for which the PPM/PDS was selected, needs to be at the last activity.

- PI Operations ( Process Industry Operations) are ignored

- No off set times supported; yield always available at the end of the activity

- For PP/DS PPMs a primary resource must be defined

- Unscheduled breaks NOT supported for time continuous resources.

[RahulHanda]

KA,

Did you checked the logs for CTM where it is not meeting the demands? You check the same in /SAPAPO/CTMAPLOG. I hope you have activated logs in CTM run under settings tab (technical settings).

If you go in log for that CTM run, under CTM planning run you will see explanations for CTM planning run & result indicator. Check for these products what it is showing there and let us know.

Regards

Rahul