INCL_RFC_IO2 is an ABAP runtime error which you may come across when using or developing within an SAP system. See below for the standard details explaining what it means and how you can avoid or fix this runtime error.
Short Dump Classification: & - Text Include (no Short Dump, only Text Module)
You can view further information about a runtme error by using transaction code ST22 which will show you this and all runtime erros that have happen in your SAP system.
Also check out the Comments section below to view or add related contributions and example screen shots.
Possible causes of error:
- Too many connections.
- Error in RFC driver program. No memory available for RFC administration. No memory available for creating or increasing RFC administration.