Agreement management

hi,

In one of my projects which deals with tendors and contrctss, in which Purchase orders are made from blanket orders. Also blanket orders have Qty and cost as per terms an conditions.

So now to mapp this scenario in JD i have two options:

1) Make blanket orders and release them by making purchase orders.

2) Use agreement managementand this will deal with Qty and price.

Please give pros and cons of both. Also suggest which one should I select.

Regards

vinayak