Document Number range autmatically getting updated

Question

Hi,
I m in SAP ECC 6.0 and new GL concept is activated. I am posting a document. Document number is generated. But the update error is given. When i saw the document number range status in document number in general ledger view, the document number is updated to further 100 numbers.
For example:
Before document was psoted, current document status was 1800000100.
But after the document was posted, current document status was 1800000200.
Let me know why SAP is behaving in such a way. The above error is seen only in "Define Document Number Ranges for General Ledger View" and not in "Define Document Number Ranges for Entry View"

Answer 1

Here is SAP help text on buffering field.
Buffer flag
This ID determines whether the number intervals are buffered for assignements and checks.
Use
The number interval buffer is in the Shared Memory of the application server. Each buffer is used to store the external number intervals and a certain number (subinterval) of the internal number intervals. If the numbers of an internal number interval are used up, numbers are taken from the database via the number range server. The status of the number interval in the database is increased by the number of numbers fetched to the buffer.
Dependencies
When buffering number intervals, gaps may result in number assignment. Buffering is therefore not possible for applications, which require continuous number assignment.
Try removing the buffer, reset all transaction data (OBR1) and retest postings.  If transaction data cannot be deleted, you should set the current number in SNRO to the most recent document number in BKPF/FAGLFLEXA and retest the postings.