How To Fix AD01505 - Billing form 'flat-rate' cannot be used for contracts

AD01505 - Overview

• Message type: E = Error

• Message class: AD01 - DI Processor (Expense-related Billing)

• Message number: 505

• Message text: Billing form 'flat-rate' cannot be used for contracts

What causes this issue?

You have set up the billing form <Ls>flat-rate</> in the contract.
With this billing form, resource-related billing is not possible. Only
the assigned service orders can be billed at a flat-rate.

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?

Select the billing form <LS>resource billing</>.
Note that, resource-related billing is then carried out for all
assigned service orders.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

AD01505 - Details

• The SAP error message AD01505 indicates that the billing form designated as 'flat-rate' cannot be used for contracts. This error typically arises in the context of billing processes within SAP, particularly when dealing with contract management and billing forms.
  
  Cause:
  
  Incorrect Billing Form Assignment: The billing form 'flat-rate' may not be configured to be used with the specific type of contract you are trying to bill.
  Contract Type Restrictions: Certain contract types may have restrictions on the billing forms that can be used. The 'flat-rate' billing form might not be compatible with the contract type in question.
  
  Configuration Issues: There may be configuration settings in the SAP system that prevent the use of the 'flat-rate' billing form for contracts.
  
  
  Solution:
  
  
  Check Billing Form Configuration:
  
  Go to the configuration settings for billing forms in SAP (Transaction code: SPRO).
  Navigate to the relevant section for billing forms and ensure that the 'flat-rate' form is correctly configured for use with contracts.
  
  
  
  Review