Automatic Clearing

Hi

I am trying to clear G/L using F.13 auto clearing function.Selected debit&credit item balance is not ZERO but with minor difference of Rs 1.

When I selcted the buttin"include tolerences" and run the program it is not clearing the documents saying 0.02 is too large to clear the difference.

I have made the following settings in SPRO.

1.Tolerence limits were fixed to groups and id is properly assigned to the group.

2.Defined revenue&expenditure accounts for automatic posting of differences under "settings for clearing program unders open item processing(G/L account).

Why is it not clearing very small diff ??

Am I correct in my understanding that "include tolerences" means SAPF124 program writes of small differences(with in tolerence limts) to defined accounts and clear the document?

regards

Prem