How To Fix K6645 - You must enter a sender structure/transfer rule here (long text!)

SAP Error Message - Details

• Message type: E = Error

• Message class: K6 - EC-EIS/EC-BP data basis: Data entry and collection

• Message number: 645

• Message text: You must enter a sender structure/transfer rule here (long text!)

What causes this issue?

You have opted for an update using data transfer. This way you can
avail of all facilities (restructuring, currency conversion etc.). You
must enter a sender structure here.

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?

Create an appropriate sender structure and maintain the transfer rules.

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 K6645 - You must enter a sender structure/transfer rule here (long text!) ?

  The SAP error message K6645, which states "You must enter a sender structure/transfer rule here," typically occurs in the context of the Controlling (CO) module, particularly when dealing with internal orders, cost centers, or profit centers. This error indicates that the system requires a sender structure or transfer rule to be defined for a specific transaction or configuration.
  
  Cause:
  The error is usually caused by one of the following reasons:
  
  Missing Sender Structure: The sender structure (such as a cost center, internal order, or profit center) has not been defined in the configuration for the specific transaction you are trying to execute.
  Transfer Rule Not Defined: The transfer rule that links the sender structure to the receiver structure is not set up correctly or is missing.
  Incorrect Configuration: There may be an issue with the configuration settings in the controlling area or the specific cost object.
  
  
  Solution:
  To resolve the K6645 error, you can take the following