How can I validate a foreign key in a table control in abap?

Question

I am learning ABAP, and one of the excersises is to make a table control with a table that has a foreign key in it.

I already did the Table control, but, how can I validate that the foreign key is correct or not?

Answer 1

1. Go to SE11.
2. Select the table .
3. Select the field.
4. Click button 'Foreign keys' .
5. Type the control table in Check table and click button 'Generate proposal' and confirm the key proposed. If not type the fieldname(s) of the check table. Include field MANDT first.

7. Select the relation type (Not specified is default).
8. Click button 'Copy' or press 'Enter'.

Hope it helps.