Check to performs:
- First perform the The Consistency Check on the ALV Grid Control to insure you correctly filled it and it's coherent with displayed internal table.
- Then in a development system you may be required to execute report BALVBUFDEL to refresh ALV buffering (there are also options to ignore buffering in ALV FM or OO class, but risk to forget to remove those before transport, so don't use)
- For the forgetful, insure you didn't defined a default layout variant, or didn't define field as technical so hidde
For reference, read Generating the Field Catalog Manually.
Regards,
Raymon