Different countries have different decimal precision's based on their currencies. Line item subtotals, Tax amounts and the Transaction amounts should reflect amount with the set decimal precision.

Ariba did not provide a feasibility to calculate amounts based on the precision set for various currencies.

Currency fields in Ariba Business Network are by default rounded to the precision defined in the ISO standard currency codes using common rounding rules. However, buyers might want to configure currency precision and specify rounding rules by overriding default settings on Ariba Business Network.

The currency precision and rounding feature enables buyers to:

• Configure currency precision values for different systems.
• Enforce the number of decimal places that suppliers can include in the Unit Price field of invoices and credit memos.
• Enforce precision at the currency level to override precision set at the system level.
• Override rounding rules for the following invoice and credit memo components:
  • Taxes
  • Allowances
  • Charges

Therefore, the values entered by suppliers in invoices and credit memos get rounded off according to the currency precision and rounding rules defined by buyers More detailed explanation on how to use the feature.

SAP Business Network for Procurement & Supply Chain > Administration (Buyer & Supplier Account Administration)