Hi, You can check these SAP notes below:
- 137626 - FAQ: Decimal places for currency codes
- 153707 - Currency translation miscalculates by 100, 1000..
- 434349 - Change of decimal places of currencies - 370896
- Line items: special amnt fields not crrncy-specific - 569939
- Line item: Open FI: Absolute amounts
They might help you to resolve your issue.
Best Regards,
Gabriel Mattos.