How To Fix VF170 - Value of open quantity must not be greater than &1.

VF170 - Overview

• Message type: E = Error

• Message class: VF - Billing

• Message number: 170

• Message text: Value of open quantity must not be greater than &1.

What causes this issue?

The open quantity may not exceed the comparison quantity. The comparison
quantity is figured from the difference of order or delivery quantity
and the previously-billed quantity in order and delivery reference
documents.
In billing reference documents, the comparison quantity is equal to the
billing quantity.
The amount you entered is : &V2&
The comparison quantity is : &V1&

System Response

The system rejects processing of the open quantity you entered.

How to fix this error?

Change the manually-entered open quantity to a positive value that is
less than or equal to the comparison quantity.

Error message extract from SAP system. Copyright SAP SE.

VF170 - Details

• The SAP error message VF170 ("Value of open quantity must not be greater than &1") typically occurs in the context of billing documents or sales order processing. This error indicates that the system has detected an inconsistency where the open quantity (the quantity that is still available for billing or delivery) exceeds a specified limit, which is represented by the placeholder "&1" in the error message.
  
  Cause:
  
  Quantity Mismatch: The open quantity for a billing document or sales order is being incorrectly calculated or entered, leading to a situation where it exceeds the allowed quantity.
  Delivery Issues: If the billing document is based on a delivery, there may be discrepancies between the quantities in the delivery and the quantities in the sales order.
  Incomplete Processing: The sales order or delivery may not have been fully processed, leading to an open quantity that is not aligned with the expected values.
  Manual Entry Errors: Users may have