How To Fix IST_EBS306 - There is no valid customer function module for event T410

IST_EBS306 - Overview

• Message type: E = Error

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

• Message number: 306

• Message text: There is no valid customer function module for event T410

What causes this issue?

In event T410 the selection entity ID is converted to a selection
entity.
Customizing is set up (SEL_ENT_ID = 99) as if you were using a
customer-specific selection entity identifier. This has to be converted
to a selection entity (business partner, contract account or contract
reference) using a customer-defined function module.

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?

Write an event function module for event T410 or change your settings
in Customizing by choosing:
<DS:SIMG.IST_IF_POISYST>Maintain Settings for Selection of Open Items
</>).

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IST_EBS306 - There is no valid customer function module for event T410 ?

  The SAP error message IST_EBS306, which states "There is no valid customer function module for event T410," typically occurs in the context of Electronic Bank Statement (EBS) processing. This error indicates that the system is expecting a customer-specific function module to handle a particular event (in this case, T410), but it cannot find one.
  
  Cause:
  
  Missing Function Module: The primary cause of this error is that there is no customer-specific function module defined for the event T410. This function module is expected to process the incoming bank statement data.
  
  Configuration Issues: The configuration for the Electronic Bank Statement processing may not be set up correctly, leading to the system not being able to find the appropriate function module.
  Custom Development: If your organization has custom developments or enhancements, it’s possible that the function module was not created or was deleted inadvertently.
  
  
  Solution:
  
  
  Create the Function Module:
  
  You need to create a custom function module that corresponds to