User Exit or BADI mandatory item text at item level in ME31K for Contract Create

Hi,

i found BADI ME_PURCHDOC_POSTE . Which is triggered before save / Create Contract BY ME31K.

My requirement is :

    1. When ever user create contract with item level . Item Text should maintained.

    2.  If User not maintain system will trough Error message...........

    3.  In line item level screen there has no of item text parameter. But my requirement use should maintain Delivery date.

above BADI i didn't get any text value.........or there has no such internal table related item text in my study. Actually Text header/item was store in tables STXH  /  STXL...

But these table stored value when Contract was created.

So. Please Can you suggest me any BADI / User Exit/ Enhancement to Solve above Requirement.

Above yellow mark i maintain Text item. if i not maintain should through error................like please maintain Delivery date

Hi. friend can you please help..........me.