Hello,
I have developed an application (A custom table and a module pool with editable ALV of this custom table).
In ALV, user can enter the value of all the fields along with KUNNR (only KUNNR, not KTOKD).
There is a requirement that "We need to allow to enter only Customer number of a Defined type(Z001, Z002)."
If the customer number entered is not part of the account group defined in the table an error message has to be displayed.
Please tell me that how can I handle this requirement using Check Table concept and Foreign key concept?
Suggestions are welcome 