How To Fix AH803 - Update in operand &1 not permitted

AH803 - Overview

• Message type: E = Error

• Message class: AH - IS-U billing (master data)

• Message number: 803

• Message text: Update in operand &1 not permitted

What causes this issue?

You use operand &v1& as an output operand for a variant. You cannot use
the operand for updating, for one of the following reasons:
The <DS:DE.REG_OPERAND>register operand</> field is selected for the
operand.
If you want to update the operand within the schema:
Register operands are provided internally with the consumption or
demand values of the allocated registers. It is therefore not possible
to update to these operands.
If you want to update the operand to the installation facts:
The operand has operand category DEMAND. Demand register operands may
not be supplied in the installation facts.
The field <LS> Operand for <DS:DE.ALLHISTORY>historical values</> bill
printout</> is selected for the operand.
Variants that use input operand &v1& exclusively, process operand
values from the installation facts. The update to these operands is
therefore not applicable.

System Response

The rate is inconsistent and cannot be saved.
The billing of the inconsistent rate is terminated.

How to fix this error?

Choose another output operand in the rate.
Correct the rate in billing.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AH803 - Update in operand &1 not permitted ?

  The SAP error message AH803, which states "Update in operand &1 not permitted," typically occurs during the execution of an update operation in the SAP system. This error indicates that the system is trying to perform an update on a field or operand that is not allowed to be modified. Here are some common causes, solutions, and related information for this error:
  Causes:
  
  Field Attributes: The field you are trying to update may be defined as read-only or may have certain restrictions that prevent it from being modified.
  Data Consistency: The update operation may violate data consistency rules defined in the system, such as foreign key constraints or business logic.
  Authorization Issues: The user executing the update may not have the necessary authorizations to modify the specified field.
  Incorrect Logic in ABAP Code: If the error occurs in a custom ABAP program, there may be logic that incorrectly attempts to update a field that should