In Payment Term, it often contains multiple details, including the price list to be assigned to the business partner.
What if you want to set the price list independently from the payment term? For such case, SAP Business One introduces a new setting:
When selected, you can define the default price list for business partners to be used instead of the price list defined in the payment term. In such case, the “Price List” field in the “Payment Terms – Setup” window is hidden:
Available in SAP Business One 10.0 FP 2105 and SAP Business One 10.0 FP 2105, version for SAP HANA.
Source: SAP community