Data sets in Microsoft Dynamics AX provide a generic data access layer that allows for external presentation layers to bind to Microsoft Dynamics AX tables and data types.
This is simple Code to get Invoice settlement amount data for customer payment in ax 2012. This data is after posting of data. select sum(SettleAmountCur) from custSettlement where custSettlement.TransRecId == custtrans.RecId If you want get settlement amount before posting than you can refer spectrans table.The table SpecTrans contains all the transactions marked for settlement for payment journal. while select spectrans join custtransopen join custtrans where spectrans.SpecCompany == ledgerjournaltrans.DataAreaId && spectrans.SpecTableId == ledgerjournaltrans.TableId && spectrans.SpecRecId == ledgerjournaltrans.RecId && spectrans.RefCompany == custtranssopen.DataAreaId && spectrans.RefTableId == custtranssopen.TableId && spectrans.RefRecId == custtranssopen.RecId && custtransopen.RefRecId == custtrans.RecId && custtransopen.AccountNum == custtrans.AccountNum { info...