3656558 - Silent Data Migration (SDM) Fails with Error "STRING_SIZE_TOO_LARGE" in SAP S/4HANA

Symptom

Disclaimer:

Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental.

SDM fails with the error "STRING_SIZE_TOO_LARGE".
The issue occurs during data migration as part of S/4HANA postprocessing in "uptime" silent data migration programs.
Error message: "STRING_SIZE_TOO_LARGE".

ST22 Dump example:

----------------------------------------------------------------------------------------------------
Category               
ABAP programming error                                                       
Runtime Errors         
STRING_SIZE_TOO_LARGE                                                        
Except.                
CX_SY_STRING_SIZE_TOO_LARGE                                                 
ABAP: Program          SAPLSHDB_PFW_FUNCTIONS                                                       
Application Component  BC-DB-HDB-PFW                                                                
Date and Time          <timestamp> (UTC)                                                    
-------------------------------------------------
----------------------------------------------------
---------------------------------------------------
-----------------------------------------------|Short Text 
                                                                                       
||Maximum string length exceeded                                                                
|-----------------------------------------------------------
-------------------------------------------------------------
------------------------------------------------------------
--------------------|
What happened?                         
||Error in the ABAP application program.                  ||                                                                          
||    The current ABAP program "SAPLSHDB_PFW_FUNCTIONS" had to be terminated because
||     it found a                                                                      
||    statement that could not be executed.                                                     
    |-----------------------------------------------------------------------------------------
---------------------------------------------------------------------------------------------------
------------|
...

Error analysis                             
||    An exception has occurred in class "CX_SY_STRING_SIZE_TOO_LARGE". This        
||     exception was not caught                                                                ||    
in procedure "SHDB_PFW_RFC_WRAPPER" "(FUNCTION)" or propagated by a RAISING                   ||     
clause.                                                                                      ||    
Since the caller of the procedure could not have anticipated this                             ||   
 exception, the current program was terminated.                                                ||  
  The reason for the exception occurring was:                                                   ||  
 The reason for the exception is:                                                              ||   
 An attempt was made create a string of length 2145386962 (bytes). This exceeds                ||  
  the maximum length for a string (2145386496) however.                                         ||  
 2145386496.                                                                                   
|------------------------------------------------------------------------------------------------
-----------------------------------------------------------------------------------------------
---------|
How to correct the error                                                                
||    If the exception cannot be prevented, "CX_SY_STRING_SIZE_TOO_LARGE" must be       
||     caught within                                                                  
||    procedure "SHDB_PFW_RFC_WRAPPER" "(FUNCTION)" or declared in the procedure's   
||     RAISING clause.                                                             
||    To prevent the exception, note the following:                              
||                                                                           
||    Do not allow this many strings to be created.                       
||                                                                    
||    If the error occurs in a non-modfied SAP program, you might be able to 
||    find a solution in the SAP Notes system. If you have access to the SAP      
||    Notes system, check there first using the following keywords:         
||                                                                           
||    "STRING_SIZE_TOO_LARGE" CX_SY_STRING_SIZE_TOO_LARGE            
||    "SAPLSHDB_PFW_FUNCTIONS" bzw. LSHDB_PFW_FUNCTIONSU01   
||    "SHDB_PFW_RFC_WRAPPER"                         
||    If you cannot solve the problem yourself, please send the following     
||    information to SAP:                 
...

----------------------------------------------------------------------------------------------------
|Chain of Exception Objects |
----------------------------------------------------------------------------------------------------
|Level Class |
|Attrib. Name Value |
----------------------------------------------------------------------------------------------------
|1 CX_SY_STRING_SIZE_TOO_LARGE |
|(Program) SAPLSHDB_PFW_FUNCTIONS |
|(Include) LSHDB_PFW_FUNCTIONSU01 |
|(Row) 217 |
|(Short Text) Maximum string length (2145386496 bytes) exceeded |
|(Long Text) Diagnosis |
| The current statement attempted to modify an ABAP string in such a |
| way that the maximum string length of 2145386496 is exceeded. |
| This situation can occur in all statements that make strings longer|
| (such as CONCATENATE, REPLACE, or SHIFT LEFT), plus in string ex |
| pressions and in CALL TRANSFORMATION. |
| Procedure |
| Once the exception CX_SY_STRING_SIZE_TOO_LARGE is caught, the |
| content of the target string is undefined. The target string may |
| already be modified in parts and have reached this size. For this |
| reason it should be initialized once the exception is caught. |
|T100_MSGID SABP_RUNT |
|T100_MSGNO 001 |
|T100_MSGV1 2145386496 |
|INCREMENT_BYTES 2034 |
|IS_RESUMABLE |
|KERNEL_ERRID |
|MAX_STRING_SIZE_BYTES 2145386496 |
|SIZE_BYTES 2145384928 |
----------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------
|Information on where terminated |
| The termination occurred in ABAP program or include "SAPLSHDB_PFW_FUNCTIONS", |
| in "SHDB_PFW_RFC_WRAPPER". The |
| main program was "SAPMSSY1". |
| |
| In the source code, the termination point is in line 217 of include |
| "LSHDB_PFW_FUNCTIONSU01". |
| include "LSHDB_PFW_FUNCTIONSU01". |
| The termination is due to exception "CX_SY_STRING_SIZE_TOO_LARGE" occurring in |
| procedure "SHDB_PFW_RFC_WRAPPER" "(FUNCTION)", |
| but not being handled locally there or being declared in the RAISING |
| clause. |
| The procedure is in program "SAPLSHDB_PFW_FUNCTIONS". Its source code begins |
| in line 1 of |
| include "LSHDB_PFW_FUNCTIONSU01". |
----------------------------------------------------------------------------------------------------

Environment

SAP HANA 2.0, HANA DB Parallelization Framework

Keywords

SDM, silent data migration, STRING_SIZE_TOO_LARGE, CX_SY_STRING_SIZE_TOO_LARGE, SAPLSHDB_PFW_FUNCTIONS, SHDB_PFW_RFC_WRAPPER, SAP S/4HANA, data migration, Dispatcher Timeout, package size adjustment, ABAP runtime error, BC-DB-HDB-PFW. , KBA , FI-GL-GL-F , Value Added Tax (VAT) , Problem

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