REFERENCE_NOT_SERIALIZABLE 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: A - ABAP Programming Error
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.
To work around the error, you can serialize only serializable data, or
you use the option DATA_REFS = HEAP or DATA_REFS = HEAP-OR-CREATE.
The ABAP data cannot be serialized.
Please see abap error for more details about the possible cause of this runtime error and how it could be avoided.
When CALL TRANSFORMATION was called, the option DATA_REFS =
HEAP-OR-ERROR was specified. A short dump was raised, because it was
tried to serialize a reference that was created by the command GET
REFERENCE OF ... INTO ... .
The ABAP data cannot be displayed in the specified XML format.
REFERENCE_NOT_SERIALIZABLE - reference not serializable RECEIVE_ILLEGAL_SWITCH - receive illegal switch READ_SWITCHSTATES_FAILED - read switchstates failed READ_REPORT_SOURCE_DEFECT - read report source defect READ_REPORT_LINE_TOO_LONG - read report line too long READ_ITAB_UC_KEY_ERROR - read itab uc key error