VR01 not inserted with F4211 Edt Line

Hi,

 

Here is my problem:

On 08-29-2013, my colleague has installed two ESUs: the JL21329 and JL21000. I think my problem is the update of a sales function by JL21329 ...

 

I know he has installed this ESU because of the following problem: "Cost Price Update, R42950, and Order Reprice, R42750, are clearing VR01 F4211 gains from sales order detail lines. "So, the ESU has solved this problem, but created a problem in my other screen ...

In P420111 program, we customize to insert a CustomerPO in the F4211.VR01 field. To do this, we called F4211 Edit Line function and our value is happening in the field szCustomerPO_VR01 - see attached file. Before it worked fine but now it does not put anything in the field ...