Dictionary field in screen

Hi Abap Gurus,
I am using dictionary field vbak-vbeln in my screen with search help VMVA.
I am doing validation on that field by checking entered sale order number is correct or not, if so throwing my user defined error message.
What happening is instead of throwing my user defined message it is throwing message like
Entered 'XXXXXXXX' Sale order not found in VBUK Table. and not allowing me go further.
Can anybody tell me why it is happening and what to do?

Hi,
There is a join on the two tables VBAK, VBUK. If you open the VBAK table and check the Entry/Check Fields tab, you will find a check implemented on VBELN with VBUK-VBELN.
So, VBAK expects the VBELN value to be present in VBUK which might not be there in your case.
Go to VBAK -> Fields Tab -> Click on the mark field of VBELN -> Press the Foreign Key button -> A dialog opens -> In the Screen Check -> Uncheck 'Check Required'.
On doing this, the SAP does not auto check the VBELN value with VBUK.

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In addition to checking up the export parameters for the Search healp you will have to define the Search Help attachment also. I'll paste the SAP Help Text below but in Simple terms
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"" From SAP HELP
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PROCESS ON VALUE-REQUEST( F4 ) statement
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* text
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Message was edited by: Prakash Ramu

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Dictionary field in screen

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