How To Fix NAA601 - The price determination date is no longer in the validity period (PO)

NAA601 - Overview

• Message type: E = Error

• Message class: NAA - Subsequent settlement (Purchasing)

• Message number: 601

• Message text: The price determination date is no longer in the validity period (PO)

What causes this issue?

Price determination date &V1& (PO price determination) is no longer in
the validity period of the condition record or a period-specific
condition (in the case of arrangements settled periodically).
The arrangement is valid from &V2& to &V3&.

System Response

No business volume update is carried out (recompilation).

How to fix this error?

Please look into the matter.
Either a program error occurred, or the situation described in Note
160570 occurred.

Procedure for System Administrators

Please look into the matter. If the situation described in Note 160570
did not occur, please contact SAP.

Error message extract from SAP system. Copyright SAP SE.

NAA601 - Details

• The SAP error message NAA601, "The price determination date is no longer in the validity period (PO)," typically occurs when you are trying to process a purchase order (PO) and the price determination date falls outside the validity period of the pricing conditions defined in the system. This can happen during various transactions, such as when you are trying to create or change a purchase order, or when you are attempting to perform a goods receipt or invoice verification.
  
  Cause:
  
  Validity Period of Pricing Conditions: The pricing conditions (like discounts, surcharges, or base prices) have a defined validity period. If the date you are trying to use for price determination (usually the document date or the delivery date) is outside this period, you will encounter this error.
  Incorrect Document Date: The document date on the purchase order or the goods receipt might be set to a date that is not valid according to