Exactness Value

Meaning

EXACT

User can pay only the exact amount mentioned in the bill.

EXACT_DOWN

User can pay the exact amount as mentioned in the bill or any amount lower than that up to a certain minimum limit.

EXACT_UP

User can pay the exact amount as mentioned in the bill or any amount higher than that up to a certain maximum limit.

NULL

User can pay any amount between an optionally preset minimum limit and maximum limit.