RM06E is a structure not a table that is why you cannot select it for extraction.

Thanks @dennis.pflug ! Appreciate the insight. What is the difference between a table and a structure and how can I tell which is which?

Bing result:

The main differences between SAP structure and table are:

• A table is where you store the records/entries, while a structure is just a grouping of data elements (fields).
• A transparent table equates to a database table, while a structure is not a database table.
• A structure is defined like a table in the ABAP Dictionary and can then be accessed from within ABAP programs, while a table can be accessed from SE11 or SE16.
• Data can be stored permanently in a table and data can be stored temporarily in a structure.
• A table can have a primary key but a structure does not.

When you have SAP access and the possibility to use TX: SE16 you will get a message in case you try to open a Structure instead of a table. Because you cannot open a structure with SE16.

The tricky part for you is now to identify which information from the structure you need and to find a table that is containing exactly this information.

In such cases I try to find it with TX: SE15 by searching tables via field names etc.

Good luck.

BR

Dennis