How To Fix FKKBIX2053 - The service type of the billable item is not uniquely defined

FKKBIX2053 - Overview

• Message type: E = Error

• Message class: FKKBIX2 - Billing in Contract Accounts Receivable and Payable

• Message number: 053

• Message text: The service type of the billable item is not uniquely defined

What causes this issue?

The service type of the billable items is not uniquely defined.

System Response

The processing of the billable item is terminated.

How to fix this error?

Maintain the service type so that a revenue accounting item can be
reported uniquely during the creation of the billable item. The billable
item either represents a service for which a fulfillment item is
reported to Revenue Accounting or a one-off charge, for which an order
item is reported to Revenue Accounting.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

FKKBIX2053 - Details

• The SAP error message FKKBIX2053, "The service type of the billable item is not uniquely defined," typically occurs in the context of billing or invoicing processes within SAP, particularly when dealing with service items that are billable. This error indicates that the system is unable to determine a unique service type for a billable item, which can lead to issues in processing invoices or billing documents.
  Causes:
  
  Ambiguous Service Types: There may be multiple service types defined in the system that match the criteria for the billable item, leading to ambiguity.
  
  Configuration Issues: The configuration settings for service types in the billing or invoicing module may not be set up correctly.
  Missing or Incorrect Master Data: The master data for the service items may be incomplete or incorrectly defined, causing the system to be unable to identify a unique service type.
  Multiple Entries: If there are multiple entries for the same service type in the