Solution : https://service.sap.com/sap/support/notes/69444 (SAP Service marketplace login required)
Summary : 
      This SAP Note addresses multiple client copy errors across various SAP releases up to 4.5B, providing corrections for issues such as `COMPUTE_INT_TIMES_OVERFLOW`, termination errors during data selection, and export failures. The note outlines specific causes ranging from table size-related overflows to incorrect client-independent data selection and suggests remedies like adjusting exception lists and reconfiguring database interfaces. Referenced solutions involve modifying settings, database analysis adjustments, and ensuring continuity in check routines, syncs, and consistency checks to prevent or solve problems arising during client copying operations. Supplementary OSS notes are provided for complex scenarios.
Key words : 
transmits sufficient 'commit work' commands, additional key words clientcopy, 2 gb free memory space, & table keys rejected due, select client-independent data', 'select client-independent data', client-independent objects completely, maximum permissible internal table, program-internal error occurred, table entries exceed 32000 bytes
Related Notes : 
       
| 356920 | Error in client copy (table TRBW) | 
| 350189 | CC-TOPIC: Error messages, client copy terminations | 
| 180541 | CC-INFO: Performance problem when copying text | 
| 142427 | DB_SETGET delivers incorrect return code | 
| 130540 | CC-TOPIC: Client copy and addresses in 4.0B | 
| 126619 | CC RELEASE: Error in client copy in Release 4.0B | 
| 96296 | CC-ERROR: Database problem in client copy | 
| 69556 | CC-TOPIC: Missing tables and data | 
| 67205 | CC-INFO: Copying large and productive clients | 
| 41839 | CC-TOPIC: User masters and client copies until 4.0 | 
| 35415 | CC-TOPIC: Memory space analysis / Test run | 
| 24853 | CC-INFO: Client copy, functionality | 
| 22514 | CC-INFO: Error analysis for client copy | 
| 20497 | CC-INFO: Long texts with a client copy |