ATP Configuration in APO

Question

Hello APO ATP Gurus,
Searching for your assistance configuring APO 30A for an availability check for this scenario:
1. All sales demand is always booked on one plant that is the main distribution center. Plant 1, for example.
2. Materials flow from the plant of manufacture through a regional distribution center to the main distribution center.
     The regional distribution center would be Plant 2, for example.
3. The plant of manufacture would be Plant 3, for example.
4. Material movements may be by Stock Transport Order (STO) or a two-step VLMOVE transaction.
5. ATP should only consider valuated, unrestricted-use inventory; stock in transfer; stock in transit; purchase orders; and released production
      orders. In no case should a purchase requisition or a planned order be considered as a planned receipt by ATP.
6. The OLTP system is R/3 (ECC 6.00).
7. In material master, procurement keys and special procurement keys are appropriately maintained.
8. An integration model, ATP_CHK, includes all relevant material-plant combinations and has been transferred across the CIF.
My question is if APO can be configured for a basic ATP check or product availability check as I describe in this example without invoking advanced ATP methods such as rules-based ATP. Also, multilevel ATP and CTP are out of scope.
For example, zero inventory in Plant 1; Plant 2; and Plant 3, but a released production order is in Plant 3. In this case, ATP should return the scheduled finish date for this released production order plus planned delivery times between Plant 3 and Plant and, again, between Plant 2 and Plant 1 plus any GR processing time that may be maintained as the material availability date and confirm a sales demand for this date. Also, consider there are no production float times maintained. This scenario does not consider using a checking horizon although that may be leveraged to prevent ATP from looking beyond the checking horizon.
Conceptually, the preferred solution would allow a complete ATP check as described above using a basic ATP method or a combination of the basic methods. Then, utilize rules-based ATP for those situations where a product or location substitution is allowed.
Your assistance is appreciated.
Best Regards,
Ken

Answer 1

Yes i mean in R/3 to extend it for all the plants and include all the plant in IM.
You can see Special procuremen key in MRP2 veiw on material master (mm03 in R/3) but i doubt in APO 3 it will create TL in APO.
Maintain Check Instructions ( In IMG) will driv setting for calling production in ATP check.
Maintain Check Instructions : driven by
Check Mode   and   
Business event .
Start Production
     Indicator that controls if PP/DS should be called.
     You can choose if an ATP check should be carried out first and then
     production planning, or if production planning should be triggered
     immediately.
     In the case of Production directly, no ATP check is carried out; rather,
     an availability check, which runs according to the rules of the net
     requirements calculation, is carried out in PP/DS. Based on the result
     of the net requirements calculation, a decision is made in PP/DS as to
     whether receipt elements should be created.
Use
     Depending on the time of production defined, the system tries to start
     production for the requested product in the relevant location (or in a
     substitute location from the rules-based ATP check).
     Of course, the location must be a production plant. If the location (or
     location substitution) is not a production plant, the indicator Start
     production is ignored.
Dependencies
     Through the production type in the check mode, you can control if
     Capable-to-Promise (CTP) or a multilevel ATP check should be carried
     out."
From above thread i understood that you don't wants to go for CTP , than i would sugget to run  BOP after  SNP solver ( CTM/Heuristic/Optimizer) so that SNP solver can plan  receipt at plant A and Sales order schedule line can be confrimed as soon as recipt element generated by BOP ( Back order processing)
Manish
Edited by: Manish Kumar Rathi on Oct 22, 2008 4:12 PM