Solution : https://service.sap.com/sap/support/notes/141963 (SAP Service marketplace login required)
Key words : 
certificate- minimum check fro wt base amount- withholding tax, local currency additional key words thailand, credit memo- wt amount, t059q- withholding tax, 'minimum amount, withholding tax, thai country version -------------------, local currency, create certificate, thai localization
Related Notes : 
       
| 149032 | HP/CRT status for Thai country version | 
| 107379 | Correction for Thai CV 30F/3 | 
| 96555 | Patch Correction Thai Version 30F/2 |