Since both the FM Are of different types,
The FM F4_FILENAME Importing Parameter FILE_NAME(Char 30)
The FM GUI_UPLOAD Importing Parameter FILENAME (String)
In FM GUI_UPLOAD for Importing Parameter FILETYPE try with 'ASC' or 'BIN'
Since both the FM Are of different types,
The FM F4_FILENAME Importing Parameter FILE_NAME(Char 30)
The FM GUI_UPLOAD Importing Parameter FILENAME (String)
In FM GUI_UPLOAD for Importing Parameter FILETYPE try with 'ASC' or 'BIN'