Solution : https://service.sap.com/sap/support/notes/116787 (SAP Service marketplace login required)
Summary : 
      This SAP Note addresses issues encountered during remote client copy operations, particularly in regards to error messages. The problems range from tables not being copied, conversion and dictionary errors, to authorization and RFC-related issues across various SAP releases. Issues such as not being able to log on to the target system, reading and writing errors, and incompatibilities due to dictionary differences between systems are specifically highlighted. The note also discusses typical errors found in transaction SCC3’s log and provides advice on testing dictionary compatibility and handling different table structures between systems. Solutions entail configuring RFC connections and proper scheduling in the background for client copy operations.
Key words : 
transaction scc3 -> select copy run -> details -> file protocol, target system   table definition t25b4 missing, message ta308  table definition & missing, add optional parameter trkorr, tables ignores additional fields, table definition k9rdev100001 missing, k9r<sid>mmmxxx exist, ta 308 table definition & missing, logging dialog box appears, subsequent error   write error
Related Notes : 
       
| 1398718 | CC:INFO-Client copy between different EHP'S | 
| 1310720 | Collection Note for Unicode Systems with different endianess | 
| 907756 | CC Error:RFC system check before Web Application Server | 
| 701336 | CC ERROR: Write error Internal error in remote copy | 
| 692660 | |
| 612883 | System time zone after cross-system client copy | 
| 534678 | TA308 not correct for client copy | 
| 521879 | CC ERROR: Client copy terminates in the background | 
| 449822 | CC ERROR: Individual addresses disappear | 
| 446279 | Syntax errors or terminations after client copy | 
| 445195 | CC ADMIN: Remote copy with cross-client Customizing | 
| 432152 | CC-RELEASE: Error in client copy in Release 6.10 | 
| 350101 | CC-TOPIC: Client copy and addresses up to 4.6D | 
| 323970 | Problem with matchcode DGMI | 
| 305912 | |
| 206523 | CC-RELEASE: Client copy errors in 4.6C and 4.6D | 
| 166500 | DB_SETGET delivers an incorrect value for ROWS_FETCHED | 
| 161495 | CC-RELEASE: Error in client copy in 4.6A and 4.6B | 
| 144015 | CC-INFO: client copy and CO-PA/EC-EIS | 
| 142427 | DB_SETGET delivers incorrect return code | 
| 131387 | No authorization to log on as a trusted system | 
| 128447 | Trusted/trusting systems | 
| 91980 | Missing output of RFC short dump after login error | 
| 89384 | Checking cluster tables with R3check | 
| 70547 | CC-TOPIC: Client transport | 
| 63347 | List: CPIC error codes | 
| 47502 | CC-REMOTE: Messages of the Remote Clientcopy | 
| 31496 | CC-INFO: Client deleted by mistake | 
| 25721 | RFC logon Screen | 
| 24853 | CC-INFO: Client copy, functionality | 
| 22514 | CC-INFO: Error analysis for client copy |