How To Fix PSSC_NET039 - Deduction type &2, priority &3 must be either perc. or amnt, not both

PSSC_NET039 - Overview

• Message type: E = Error

• Message class: PSSC_NET - Net Calculation

• Message number: 039

• Message text: Deduction type &2, priority &3 must be either perc. or amnt, not both

What causes this issue?

Both of the attributes "Percentage" and "Amount" are filled with values.
A deduction item must be either a percentage or a fixed amount, but not
both.

System Response

The deduction item cannot be processed, and the net calculation fails
for the entire net calculation unit period.

How to fix this error?

Contact your system administrator.

Procedure for System Administrators

This issue is most likely caused by a problem in one of the areas in
front of net calculation, for example the CRM user interface.
If the problem has not been caused by customer-specific adjustments,
contact SAP with details of the error.
The gross payment document which triggered the net calculation has the
version ID &V1&, deduction type &V2&, deduction priority &V3&, valid for
&V4&.
INCLUDE PSSC_NET_GPD_VERSIONID_TEXT OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PSSC_NET039 - Deduction type &2, priority &3 must be either perc. or amnt, not both ?

  The SAP error message PSSC_NET039 indicates that there is a configuration issue with a deduction type in the SAP system. Specifically, it states that a deduction type (identified by &2) with a priority (identified by &3) must be defined as either a percentage (perc.) or an amount (amnt), but not both at the same time.
  
  Cause:
  This error typically arises when:
  
  A deduction type is incorrectly configured in the system to have both a percentage and an amount defined simultaneously.
  There may be a misunderstanding in the setup of deduction types in the relevant configuration settings.
  
  
  Solution:
  To resolve this error, you should follow these steps:
  
  
  Access the Configuration:
  
  Go to the SAP Customizing Implementation Guide (IMG) by using transaction code SPRO.
  Navigate to the relevant section for configuring deduction types. This is usually found under:
  Financial Accounting (New) > Accounts Receivable and Accounts Payable > Business Transactions > Deductions > Define Deduction Types.
  
  
  
  
  
  Check Deduction Type Settings:
  
  Locate the deduction type