Ariba SES amounts differs to SAP S4

[jsainzh]

Hi Experts, we´re facing the following problem between Ariba and S4:

Suppliers creates SES in Ariba Network based on quantity (based in 4 digits, 0.XXXX), when that document is received in ERP (based in 3 digits, 0.XXX), so quantity and amounts differs in both systems.

Is there a way to synchronize digits or to force the information from one of the systems?

Thanks for your time...

[jsainzh]

Where can I configure the number of digits for a SES in Ariba?