How To Fix 1Q401 - Endless loop in the definition of route &2 in bank area &1

1Q401 - Overview

• Message type: E = Error

• Message class: 1Q - Messages In-House Banking

• Message number: 401

• Message text: Endless loop in the definition of route &2 in bank area &1

What causes this issue?

The definition of route &V2& in bank area &V1& contains errors. The
next In-House Cash Center to receive the order (bank key &V4&, in bank
country &V3&) is already defined in the route determination settings.
This has led to an endless loop.

System Response

Processing of the payment orders or payment requests is terminated.

How to fix this error?

Correct the above route in Customizing for <LS>SAP In-House Cash</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 1Q401 - Endless loop in the definition of route &2 in bank area &1 ?

  The SAP error message 1Q401 indicates that there is an "endless loop" in the definition of a route in a specific bank area. This typically occurs when there is a circular reference in the routing configuration, which can prevent the system from processing the route correctly.
  
  Cause:
  The error is usually caused by one of the following issues:
  
  Circular References: The route definition may have been set up in such a way that it refers back to itself, creating an endless loop.
  Incorrect Configuration: There may be incorrect or incomplete configuration in the routing settings for the bank area.
  Missing or Incorrect Data: Required data for the route may be missing or incorrectly defined, leading to the system being unable to resolve the route.
  
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Route Definition:
  
  Go to the transaction code related to route maintenance (e.g., SPRO for configuration).
  Navigate to the relevant section for route definitions in