Parking of DocumentsYou can use document parking to enter and store (park) incomplete documents in the SAP system without performing extensive entry checks. For more information, see Document Parking.
Parked documents can be completed, checked, and then posted at a later date - if necessary by a different accounting clerk.
When documents are parked, data (such as transaction figures) is not updated. The only exception to this is in Cash Management (TR-CM).
Nevertheless, data from parked documents can be used for current evaluations by the system. For example, amounts from parked invoices can be used for the advance return for tax on sales and purchases. Using payment requests, parked invoices can be paid punctually and without loss of discount.

You can use the tax amounts determined on the basis of the data in parked documents to apply in advance to the tax authorities for any tax receivables that are due to you. From the SAP Easy Access screen, choose Accounting → Financial Accounting → General Ledger → Reporting → Tax Reports → General → Input Tax from Parked Documents.
In contrast to
document parking, the
holding documents
function is merely designed to allow you to interrupt your work on a document
and temporarily save the data you have entered so far until you can resume
posting. No document number is assigned. You cannot use data entered in this
way for evaluations.
Substitution is not supported in document parking. Substitution takes place via the posting transaction once you generate an accounting document from the parked document.
You make the appropriate settings in Customizing for Financial Accounting under Financial Accounting Global Settings → Document → Parked Documents.