Disabling unit cost mapping in 856 transaction

When using a LAW map type and a trading partner ID of LO, LG, or LV, the default behavior is to map the unit cost from a line level SLN segment. Use these data substitution records to disable for all trading partners.

Field	Value	Comments/Examples
List name	L1_I_856_UNITCOST
Your value	N
Partner value	<tpid> or *