About Default Attribute Mappings
Default attribute mappings can be defined for a match process.
A default attribute mapping configures the match process limits for match rules with tolerance set to Match with Tolerance and Use set to Match Process Limits. By default, the system creates a default attribute mapping using the balancing attributes in the source system and subsystem. The Default Tolerance Limit for this mapping is set to -0 To +0. You can edit this default attribute mapping and change the tolerance limits. Based on your business requirement, additional default attribute mappings can be created.
For example, if the balancing attribute in the source system is Amount and the balancing attribute in the subsystem is InvAmount, then a default attribute mapping is created to match Amount and InvAmount with a default tolerance of -0 to +0. You can edit this to -1 to +1, to suit your requirement. When you create a rule condition that uses Amount and InvAmount, and you set Match Type to Match with Tolerance and Use to Match Process Limits, the From and To values default to -1 and +1 respectively (the tolerance limits specified in the default attribute mapping).