Staus of Sales quotation is closed, I want to make VA22 uneditable

[Former Member]

Hi Friends,

I have a requirement for making sales quotation uneditable.

I created quotation and with the help of GOTO->Header-> Status, i changed the status Closed from Open through object Status Button and saved it. Now If I will go through Transaction VA22 and enter that quotation number it should NOT allow to make any changes in quotation( in simple terms all the fields should be greyed out similar to VA23 transaction). Please provide me any user exit, Badi aur any other way to do it.

Thanks in advance.

[Former Member]

I have applied this business functionality in different way and it is resolved