Help required in matrix

Hi,

I am facing a very practical problem while craeting a new SBO screen.

This new screen contains a matrix control that is meant for poupulating sales orders data (ORDR) with link button in sales order doc num column.

I have done all the things pretty well except one thing.

The problem scenario is as follows,

I am polulating DocNum as a link button column but clicking on the corresponding link button of matrix it does not pops up the sales order screen with relative sales order data. I got the solution of this problem that for opening sales order screen with relative data, we have to pass DocEntry instead of DocNum value.

For that, i set the docNum column alias to DocEntry instead of docNum.

It's sorts out the above mentioned problem but now the practical problem arrises that Doc entry is readable by user that is not the valid process as per the SAP SBO funtionality.

Now please provide me the way that docNum appears on the screen and while clicking on the corresponding link button it uses the brelative docEntry for opening the sales order screen with relative data.

If any one out of you can help me, please do provide. It's very urgent for me.

Thanks in advance.