How To Fix IST_EBS131 - Only billing type reversal &1 is from category IS-T external billing

SAP Error Message - Details

• Message type: E = Error

• Message class: IST_EBS - Interface Between IS-T and External Billing System

• Message number: 131

• Message text: Only billing type reversal &1 is from category IS-T external billing

What causes this issue?

The billing document type of reversal billing document &v1& is from
category <ZH>IS-T External Billing</> and the original billing document
&v2& is allocated to another type of billing document.
If you need to allocate reversal billing document type &v1& to the
<LS>IS-T External Billing category</>, you must also allocate the
original billing document type &v2& to this billing document type.

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

INCLUDE FICA_NA_CUST 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 IST_EBS131 - Only billing type reversal &1 is from category IS-T external billing ?

  The SAP error message IST_EBS131 indicates that there is an issue related to billing types in the context of external billing within the IS-T (Industry Solution for Telecommunications) module. Specifically, the error states that only the specified billing type reversal is allowed for the external billing category.
  Cause:
  This error typically occurs when:
  
  You are trying to reverse a billing document using a billing type that is not configured for external billing.
  The billing type you are using does not match the expected billing type for the reversal process.
  There may be a configuration issue in the billing type settings in the SAP system.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Billing Type Configuration:
  
  Go to the configuration settings for billing types in the IS-T module.
  Ensure that the billing type you are trying to use for reversal is correctly configured for external billing. You can check this in the transaction code SPRO under:
  SAP Customizing Implementation Guide -> Industry Solutions -> Telecommunications -> Billing -> Billing Types -> Define Billing Types
  
  
  
  
  Use the Correct Billing Type:
  
  Make sure you are using the correct billing type for the reversal. The error message specifies that only a certain billing type is allowed for the reversal. Verify which billing type is valid for the reversal process.
  
  
  
  Review Documentation:
  
  Check the SAP documentation or help files related to billing types and external billing to understand the specific requirements and configurations.
  
  
  
  Consult with SAP Support:
  
  If you are unable to resolve the issue through configuration changes, consider reaching out to SAP support for further assistance. They may provide insights specific to your system configuration.
  
  
  
  Testing:
  
  After making any changes, perform a test reversal to ensure that the error no longer occurs.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SPRO: Access to the SAP Customizing Implementation Guide.
  VF11: Transaction code for reversing billing documents.
  
  
  
  Documentation:
  
  SAP Help Portal and specific IS-T documentation can provide additional context and details on billing types and their configurations.
  
  
  
  Community Forums:
  
  SAP Community and other forums can be useful for finding similar issues faced by other users and the solutions they implemented.
  
  
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.