schedule sequence heuristic

[Former Member]

We are currently on scm 5.1 version. planned orders are generated for a together for multiple sale orders by variable heuristic. start dates will be based on the requirement date of sale order.

suddenly the priority changes. the first priority sale order becomed 2nd priority and the second priority becomes first priority. So what we did is, in the priority field, we changed the priority accordingly. then indetailed scheduling planing board, we ran schedule sequence heuristic with earliest date selected order priority in schedule sequence tab withis the heuristic. immedietly the planned order start dates will change. this is ok. But the planned order pegged for the header planned order down the line does not change accordingly, which does not make any sense. actually we have aroung 8 levels of bom wich 4-5 in house products in each level. We cannot go to the product view of each level and each product and change the priority. if the header planned order priority is changed then all the planned orders pegged to it should change. Pls let us know if there is any solution for this.

Thanks

Vinay

[Former Member]

Vinay,

If all you want to do is change the priorities of the subordinate orders to match your new priorities at the higher level, then run the Order Priority heuristic (standard is SAP_PP_012). Also, you could use the top-down scheduling heuristic. Standard is SAP_PP_010. These are PP heuristics, so if you are also doing capacity planning, you should review your cap plan to be sure it is still realistic.

More info at http://help.sap.com/saphelp_scm50/helpdata/en/2e/c0703713bf277ee10000009b38f8cf/frameset.htm

Also, look at the blue 'I" next to the algorithm in /SAPAPO/CDPSC11.

Rgds,

DB49

[Former Member]

Hi DB49,

When i run multi level order bottom up or top down. i select all the orders, but only one level up and down is scheduled. but in our case we have 25 to 30 levels of bom. we cannot schedule level by level. so is there any heuristic setting where it schedules multilevel orders in one go than level by level.

Pls help

vinay

[Former Member]

Vinay,

This heuristic should work for multilevel planning. For TopDown, it should start with FGs and go all the way to the bottom of your BOM, based on your Low Level codes.

Don't know if you are using this interactively or in a planning run, but generally, multilevel heuristics can give you problems if you have a limited propagation range or if your LL codes aren't accurate. Make sure your time profile and propagation range include all the products you want to plan. Make sure you are not excluding any plants/products/resources you wish to plan. Also, you probably should run the LL heuristic SAP_PP_020 before trying any ML heuristic.

Rgds,

DB49