REUSE_ALV_FIELDCATALOG_MERGE

Hi All,

In the FM REUSE_ALV_FIELDCATALOG_MERGE which is used to build the field catalog why shud we give the structure name,internla table name import parameters and populate the field catalog with field name and text also.If we specify only the internal table name that we have have defined in the program will it pick up the field names and texts from it?

Am not clear why do we give all these paramters.

Thanks,

Rakesh.