Message type: E = Error
Message class:  NAA - Subsequent settlement (Purchasing) 
Message number: 016
Message text: No document conditions exist for purchasing doc. (non-time dep. condit.)
<GL:purchasing_document>Purchasing document</> &V1& (
<GL:purchase_order>purchase order</> or
<GL:scheduling_agreement>scheduling agreement</>) is a document with
<GL:time-dependent_condition>time-dependent conditions</>.
This means that no price determination is carried out for the document
itself. Price determination and valuation are not carried out until
goods receipt.
However, the goods receipt does not have any document conditions. The
number of the document conditions is missing in the purchase order
history.
No update is carried out (no document conditions).
The goods receipt should not have been entered in this form. This may be
due to a program error. Contact your system administrator.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message NAA016 ("No document conditions exist for purchasing doc. (non-time dep. condit.)") typically occurs in the context of purchasing documents, such as purchase orders or contracts, when the system cannot find any valid conditions (pricing, discounts, etc.) associated with the document. This can happen for several reasons, and here are some common causes, solutions, and related information:
Causes:
Missing Condition Records: The most common reason for this error is that there are no condition records maintained for the relevant purchasing info record or vendor in the system.
Incorrect Condition Type: The condition type being referenced may not be set up correctly or may not be applicable to the purchasing document.
Document Type Issues: The purchasing document type may not be configured to allow certain conditions.
Validity Period: The condition records may have a validity period that does not include the date of the purchasing document.
Purchasing Organization: The purchasing organization or plant may Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
NAA015 Function "Income for scale" terminated due to internal program error
What causes this issue?  An internal program error occurred.System Response  The function "Income for scale" is cancelled.How to fix this er...
NAA014 Business volume data for condition type &1 will be updated twice
What causes this issue?  Condition type &V1& for application &V2& is defined in both calculation schema &V3& for the supplier ...
NAA017 No updating of provisions for accrued rebate income (account key missing)
What causes this issue?  Provisions for accrued income were determined during price determination (the condition type is relevant for provisions for a...
NAA018 The function is only defined for condition records in subsequent settlem.
What causes this issue?  The required function is only defined for condition records for subsequent settlement in Purchasing. Either the condition rec...
Click on this link to search all SAP messages.