Getting error- is not an internal table "OCCURS n" specification is missing in SAP method

When working with SAP ABAP methods, you may encounter the error "<type table> is not an internal table 'OCCURS n' specification is missing". This error occurs when you try to use a structure type instead of a table type for parameters that expect internal tables.

You need to define the et_flights parameter as of type SFLIGHT. As per method defined, you have this type as structure type and also declare transparent table SFLIGHT at the same time.

You should use an already available dictionary table type with row structure of SFLIGHT for et_flight.

You should declare et_flights inside the method in class definition as a private member or as a return value of the method.

Solution

To resolve this error, you need to define a proper table type instead of using a structure type directly. Here's the corrected approach ?

class myclass definition.
  public section.
  types ty_mytable type standard table of sflight.
  methods mymethod exporting mydata type ty_mytable.
endclass.

class myclass implementation.
  method mymethod.
    select * from sflight into table mydata.
  endmethod.
endclass.

Key Points

The solution involves these important steps ?

• Define a table type using TYPE STANDARD TABLE OF instead of using the structure directly
• Use the custom table type ty_mytable for the method parameter
• The SELECT statement uses INTO TABLE to populate the internal table

This approach ensures that your parameter is properly recognized as an internal table type, eliminating the "OCCURS n specification is missing" error.

Conclusion

Always define proper table types when working with internal tables in SAP ABAP methods to avoid type-related errors and ensure clean, maintainable code.