How To Fix FS638 - No mixed processing of FI and HR checks possible

FS638 - Overview

• Message type: E = Error

• Message class: FS - Messages from Tax Routines / Prenumbered Checks

• Message number: 638

• Message text: No mixed processing of FI and HR checks possible

What causes this issue?

It is not possible to process an area of checks in which both Financial
Accounting checks and Payroll Accounting checks are contained.

How to fix this error?

Divide up the area of checks to be processed correspondingly.
Organizationally, a mixup of this sort is to be prevented by creating a
check lot for each department.

Error message extract from SAP system. Copyright SAP SE.

FS638 - Details

• The SAP error message FS638 "No mixed processing of FI and HR checks possible" typically occurs in the context of financial accounting (FI) and human resources (HR) when there is an attempt to process checks that involve both FI and HR components simultaneously. This error is often encountered when trying to execute payment runs or check processing that involves both financial transactions and payroll-related transactions.
  
  Cause:
  The primary cause of this error is the system's restriction against processing checks that mix financial accounting (FI) and human resources (HR) data. This is due to the different nature of the data and the way the system handles these transactions. For example, if you are trying to process a payment that includes both vendor invoices (FI) and employee payroll (HR), the system will not allow this mixed processing.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Separate Payment Runs: Ensure that you are running separate