Vendor as mnditory in QA01 transaction

Question

Hi friends,
I got an urgent requirement..
In QA01 transaction.. I want Vendor as manditory field..when the inspection value is particular value..
please give the procedure..
and imp code..
regards,
sampath.

Answer 1

Hi friends,
   I've encountered same problems also.  But I did make a user exit already. 
INFO:
QPL10004 User subscreen for displaying additional data
This enhancement allows you to display or change additional data on the
screens for the inspection lot transactions.
All fields in table QALS are available for display. You can only make
limited changes to the customer-specific fields of the table enhancement
CI_QALS (forms the basis of the table QALS).
Displaying data:
Activate the subscreen you require and use enhancement EXIT_SAPLQPL1_004
to make entries for the fields. The inspection lot fields in the
structure I_QALS are available for this. You can access status management
data using the function modules STATUS_READ (to load) or STATUS_CHECK (to
check).
Changing data: You can only change the fields in the Include CI_QALS.
Therefore, create the structure again in the Dictionary and add the
fields you require to this structure.
The enhancement EXIT_SAPLQPL1_004 then transfers the current status of
QALS to the function group XQPL, where you can change the data on the
customer-specific subscreens.
The enhancement EXIT_SAPLQPL1_006 can be used to return the changed data
using the structure E_QALS_CUST to the inspection lot.
When you save QALS, the changed data is automatically saved.
PROBLEMS ENCOUNTERED:
Example:
"In QA01 transaction.. I want Vendor as manditory field..when the inspection value is particular value.."
When inspection value '013' is encountered, Vendor field should either pop-up a screen or should already be in the screen.
The problem with this user exit is that it bypass during or doesnt enter the user exit during the process of QA01