How To Fix MRNB037 - Aggregation of purch. doc. &1/&2 must be exploded before new valuation

SAP Error Message - Details

• Message type: E = Error

• Message class: MRNB - Messages for Revaluation (Retro Active Pricing)

• Message number: 037

• Message text: Aggregation of purch. doc. &1/&2 must be exploded before new valuation

What causes this issue?

A new valuation cannot be made for material document &V3& / &V4&
because the purchase order history for purchasing document &1, item &2
was already aggregated.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Explode the aggregation for purchasing document &1, item &2 again and
then run a new valuation.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MRNB037 - Aggregation of purch. doc. &1/&2 must be exploded before new valuation ?

  The SAP error message MRNB037 indicates that there is an issue with the aggregation of purchasing documents in the system. Specifically, it states that the aggregation of the purchasing document (identified by &1 and &2) must be exploded before a new valuation can be performed. This typically occurs in the context of materials management and inventory valuation processes.
  Cause:
  The error is usually caused by one of the following reasons:
  
  Aggregation of Purchase Orders: The purchasing document is aggregated, meaning that multiple purchase orders or items are combined into a single entry. This can happen in scenarios where multiple items are received together or when there are multiple deliveries for a single purchase order.
  Valuation Issues: The system requires that the aggregated purchasing document be exploded into its individual components before it can perform a new valuation. This is necessary to ensure that the valuation is accurate and reflects the individual items' costs and quantities.
  
  Solution:
  To resolve the MRNB037 error, you can follow these steps:
  
  
  Explode the Aggregated Document:
  
  Navigate to the transaction where you can manage the purchasing documents (e.g., ME23N for display or ME22N for change).
  Locate the aggregated purchasing document and explode it to view the individual line items.
  Ensure that each line item is correctly accounted for and that there are no discrepancies.
  
  
  
  Check Valuation Settings:
  
  Review the valuation settings for the materials involved. Ensure that the valuation class and other related settings are correctly configured.
  If necessary, consult with your finance or controlling team to ensure that the valuation methods align with your organization's policies.
  
  
  
  Reprocess the Valuation:
  
  After exploding the document and ensuring that all items are correctly accounted for, attempt to reprocess the valuation.
  Use the appropriate transaction (e.g., MR21 for revaluation) to perform the new valuation.
  
  
  
  Consult Documentation:
  
  If the issue persists, refer to SAP documentation or consult with your SAP support team for further assistance. They may provide additional insights or troubleshooting steps specific to your system configuration.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as ME23N (Display Purchase Order), ME22N (Change Purchase Order), and MR21 (Revaluation of Material).
  SAP Notes: Check for any SAP Notes related to this error message, as they may provide specific fixes or patches that address known issues.
  User Roles: Ensure that you have the necessary permissions to view and modify purchasing documents and perform valuations.
  
  By following these steps, you should be able to resolve the MRNB037 error and proceed with the necessary valuation processes in SAP.