PR missing in output plan in ASCP oracle R12.2.5

Application is Oracle E-Business Suite R12.2.5 Stand alone not cloud

moduel : advanced supply chain planing

MRP

this is steeped to generate plan 

1- create forecast set by the product item from 1 to 5 Nov 

2- create source and assignee set 

3- create plan and configure option plan by forecast and assignment set 

4- run collocations data 

5- run plan 

6- view plan output 

7 - work order only appeared in the plan output , it is normal ?  I think also must( PR planed ) for ingredient  appeared also 

8- or I must release the work order ( to crate batch first ) and then rerun collection data and rerun plan to get the PR order planed