Для чего оно нужно?

ну написано вот в справке к полю:

Freely definable group code for customers and vendors, or G/L accounts. Tolerance groups are unique within a company code.

Use
Each tolerance group contains settings that affect cash discount and payment difference processing. These settings become effective during payment entry.

во. можно свободно определять. видимо, дополнительное поле, которое можно использовать, ну, в схемах калькуляции, скажем. насчёт settings ничего не знаю, в SPRO их нет нигде.

о тож ... может кто как использовал ... ?!

Описание из СПРО

Define Tolerance Groups for Employees
In this activity you can define different amount limits for your employees. You use these limits to determine:
o The maximum amount for which an employee is permitted to post a document
o The maximum line item amount an employee is permitted to enter in a customer, vendor or general ledger account
o The percentage amount an employee can enter in a line item
o The maximum acceptable payment difference. Payment differences within certain tolerance groups are posted automatically. The system either adjusts the discount or posts the difference to a separate expense or revenue account.
To do this, you have to define:
o The maximum amounts or percentage rates that the system should automatically post to a separate expense or revenue account if an adjustment to the discount is not possible, and/or
o The difference amounts for which the system should adjust the discount. In this case the discount is automatically increased or reduced by the amount of the difference. You can also differentiate according to company codes. Since the same limits usually apply for a group of employees, enter the limits for employee groups. You then define the amount limits and tolerances per employee group and company code.
Note
You can also define tolerances without defining a tolerance group. In this case, leave the field Grp blank. The tolerances so defined then apply to all employees that are not assigned to a group. There must be at least one entry for each company code.
You can also define tolerances for clearing transactions in the Customers, Vendors or G/L account master records. The lower limits from the specifications for the trading partner and the employee group then apply for clearing.

дргими словами - опредляем группы, назначаем лимиты...
после чего включаем пользователей в эти группы.

спасибо! нашел