# Unit price in Purchase order lines in AX 2009 **URL:** \ **Category:** User Forum\ **Created:** [August 3, 2011, 11:06am UTC](https://www.dynamicsuser.net/t/unit-price-in-purchase-order-lines-in-ax-2009/32182 "2011-08-03T11:06:37Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![satishec](https://avatars.discourse-cdn.com/v4/letter/s/5f9b8f/32.png) [@satishec](https://www.dynamicsuser.net/u/satishec)\ **Post date:** [August 3, 2011, 11:06am UTC](https://www.dynamicsuser.net/t/unit-price-in-purchase-order-lines-in-ax-2009/32182/1 "2011-08-03T11:06:37Z")
Hi All, I have given the Purchase Price for an Item in Item Master and there are no Vendor trade agreement available for this item. I create a PO Lines for this Item, AX by default the Purchase Price as an Unit Price in the PO lines once the lines are created, then i would enter the Qty and new Unit price, if I go and change the Qty, the Unit price which i have entered gets vanished and based on Item master Purchase price is defaulted? For the first time, Purchase price needs to be defaulted from Item master and after that the Unit price should be retainted? Is that possible by changing any parameter or through by customization only? Can any one help me. Regards, Satish EC ---
**Author:** ![AdamRoue](https://avatars.discourse-cdn.com/v4/letter/a/c37758/32.png) [@AdamRoue](https://www.dynamicsuser.net/u/AdamRoue)\ **Post date:** [August 3, 2011, 12:20pm UTC](https://www.dynamicsuser.net/t/unit-price-in-purchase-order-lines-in-ax-2009/32182/2 "2011-08-03T12:20:52Z")
Customisation only. The system re-reads on any change to validate against new quantity breaks, date based TA’s etc. ---
**Author:** ![satishec](https://avatars.discourse-cdn.com/v4/letter/s/5f9b8f/32.png) [@satishec](https://www.dynamicsuser.net/u/satishec)\ **Post date:** [August 4, 2011, 9:21am UTC](https://www.dynamicsuser.net/t/unit-price-in-purchase-order-lines-in-ax-2009/32182/3 "2011-08-04T09:21:07Z")
Thanks Adam for your suggestions ☹ Regards, Satish EC