What derives creation of PR and what for planned order???

Question

experts i have a situation-pls help
I created a PM work order (IW31 ) with the
start date 01/31/2011
fin date 01/31/2011
then i offset it for -14 days (order start/ requirement date -> 01/17/2011)
i added 3 components in it with the following
RLT - 8 days
MRP type- PD
lot size- EX
after the MRP run- it created PR for all of them with creation date 12/17/2010 and release date 01/09/2011-> which is ok!
now the user added other component in the same WO with the same details on 12/22/2010-> but this time it created the planned order!!!!!
my quesiton is what is deriving it to create PR and what to create planned order???? (my requirement is to hav the planned order for the material so that i can convert the PO -> PR by nxt month close to the release date of the PR of the components- i _unnecessary dnt wants to have the PR created now!!!!!)_

Answer 1

Dear
A merial with Procurement Type F and having requirement  (PIR , Sales Order ) , will generate PR in MRP run if you choose Create PR indicator as 1/2.But priorty should be Procurement Type in MPR2 view .Even you keep Creat Purchase Req indicator as 3 (Planned Order ) -It will generate Planned order and u can convert them to PR  from MD04.
Where as a Material with Procurement Type-E will create Planned Order  based on the requirement in MD02 .Here you should keep the Create PR indicator as 3.Even , if you choose Create PR indicator as 1 or 2 ,  you will recieve Planned Order Only which can be converted to Production Order , PR, Sub-Contracted PR  etc .
Basically Procurement Type drives the Planned order  and PR but Create PR indicator in MD02/MD03  gives th result based on the selection .
Test  the same with a sample material  with Procurement Type-E /F and play around with MD02/MD02
Regards
JH