Amount based approvals means, when defining ALH, it is specified that the approval process for the PR goes to the next level ONLY if the amount on the item is greater than “X” amount. This is identified by the “Threshold Amount” that is defined at each level of the Approver List Hierarchy.
For example,
All office expense bills up to 5000 will be approved by Mr. XX, followed by Mr. YY (Approver List at Level 1)
Between 5000 to 10000, Mr. ZZ also should approve. (Approver List at Level 2)
Above 10,000 it should be approved by Mr. ABC as well. (Approver List at Level 3)