Solution : https://service.sap.com/sap/support/notes/630379 (SAP Service marketplace login required)
Key words :
read change documents reason, relevant support package, function module changedocument_read_headers, range table lt_sl_changenr, function module, change number, range table, table cdhdr, call returns, correct result
Related Notes :
| 557683 | Performance CHANGEDOCUMENT_READ and others |