To control the total maximum amounts of accounting documents posted by users.

Create and assign them each to a tolerance group.

e.g.
Posting documents up to $20,000 and clear customer and vendor accounts up to $10,000.
Percentage amounts of Cash discount allow per line item.
Revenue or Payment differences e.g. Amount $1,000 up to a maximum of 90.0%
Cash Discount Adjustment - amounts up to $10 of the total difference

OBA4 - Define Tolereance Groups for users
The default Null groups for Company code 0001 have been created by SAP.
Usually, most users will used the Null groups which allows them to post up to a certain amounts.
For higher amounts posting, assign them to certain higher level users who has a higher authority.

OB57 - Assign users to Tolerance Groups

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