Use
You can simulate a document before you actually post it. This gives you an overview of the document items you have already entered, and you can check whether they are complete and correct. During simulation, the document goes through all the checks required for posting. For more information, see:
Control Functions for Entering and Posting Documents
When you simulate a document, the automatically generated items, such as input tax and tax on sales and purchases, are displayed.
Prerequisites
You have entered the document header and at least one line item.
Activities
The Enter G/L Account Posting: Header Data screen appears.
The Enter G/L Account Document: Add G/L Account Item screen appears.
The Enter G/L Account Document: Display Overview screen appears. The following system message appears:
The Enter G/L Account Document: Correct G/L Account Item screen appears.
The Enter G/L Account Document: Add G/L Account Item screen appears again.
The Enter G/L Account Document: Display Overview screen appears. The line items are displayed as they would be posted.
You have the following options for processing the document further:

To delete an automatically generated line item, first reset the item to be deleted, select the item, and then choose Edit ® Delete item.