How To Fix MN766 - Calculation schema & has not been assigned

SAP Error Message - Details

• Message type: E = Error

• Message class: MN - Message class for subsequent settlement (Purchasing)

• Message number: 766

• Message text: Calculation schema & has not been assigned

What causes this issue?

Calculation schema &V1& (usage &V2&, application &V3&) has not been
assigned to an intended purpose.
As a rule, this makes little sense.

How to fix this error?

Please check that schema &V1& has been correctly assigned in the system.
INCLUDE 'NA_CUST_MAINTAIN' OBJECT DOKU ID TX LANGUAGE E
The following assignments are checked:

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

Price determination (purchase order, scheduling agreement)

<DS>
<ds:TRAN.OMFO>Perform function</>
ENDIF
Subsequent settlement accounting (settlement schema for end-of-period
rebates due)

<DS>
<ds:TRAN.OMFH>Perform function</>
ENDIF
Free goods

<DS>
<ds:TRAN.M/N6>Perform function</>
ENDIF
Supplier billing document (Settlement Management)

<DS>
<ds:SIMG.W_WLFA_0007>Perform function</>
ENDIF
Settlement documents (Settlement Management)

<DS>
<ds:SIMG.W_WLFA_0007>Perform function</>
ENDIF

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MN766 - Calculation schema & has not been assigned ?

  The SAP error message MN766, which states "Calculation schema & has not been assigned," typically occurs in the context of the Material Management (MM) module, particularly when dealing with pricing and conditions in purchasing documents. This error indicates that the system cannot find a calculation schema assigned to the relevant purchasing organization or vendor.
  Cause:
  
  Missing Assignment: The calculation schema has not been assigned to the purchasing organization or vendor in the configuration settings.
  Incorrect Configuration: The configuration for the pricing procedure may not be set up correctly, leading to the system being unable to find the appropriate calculation schema.
  Master Data Issues: The vendor master data or purchasing info record may not have the necessary settings or may be incomplete.
  
  Solution:
  To resolve the MN766 error, follow these steps:
  
  
  Check Calculation Schema Assignment:
  
  Go to the configuration settings in SAP.
  Navigate to SPRO ? Materials Management ? Purchasing ? Conditions ? Define Calculation Schema.
  Ensure that the calculation schema is assigned to the relevant purchasing organization and vendor.
  
  
  
  Assign Calculation Schema:
  
  If the calculation schema is not assigned, you can assign it by selecting the appropriate purchasing organization and entering the calculation schema in the relevant field.
  
  
  
  Review Pricing Procedure:
  
  Ensure that the pricing procedure is correctly defined and that it includes the necessary condition types.
  Check if the pricing procedure is assigned to the relevant document types and purchasing organizations.
  
  
  
  Vendor Master Data:
  
  Check the vendor master data to ensure that the vendor is correctly set up with the necessary purchasing information.
  Go to the vendor master record (transaction code XK03) and verify the purchasing data.
  
  
  
  Purchasing Info Record:
  
  If applicable, check the purchasing info record for the material and vendor combination to ensure that it is correctly set up.
  
  
  
  Testing:
  
  After making the necessary changes, test the purchasing document creation again to see if the error persists.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  ME21N: Create Purchase Order
  ME22N: Change Purchase Order
  ME23N: Display Purchase Order
  XK03: Display Vendor
  
  
  Documentation: Refer to SAP Help documentation for detailed information on pricing procedures and calculation schemas.
  Support: If the issue persists after following the above steps, consider reaching out to your SAP support team or consulting with an SAP MM expert for further assistance.
  
  By following these steps, you should be able to resolve the MN766 error and ensure that the calculation schema is properly assigned in your SAP system.