How To Fix FSL_APPL002 - Customer for &1 &2 does not exist

FSL_APPL002 - Overview

• Message type: E = Error

• Message class: FSL_APPL - Messages for FSL Agency Business Application

• Message number: 002

• Message text: Customer for &1 &2 does not exist

What causes this issue?

You want to find the customer for a document item or a document but you
have entered an identification object (for example, a fuel card number
or a license plate number) that has not been assigned to a business
partner or does not exist in the system.

How to fix this error?

If the identification object exists in the system, assign this object to
the relevant business partner in the Business Partner transaction (for
example, with the identification type FS0005).
If the identification object does not exist in the system, assign a dumm
y customer to the item. You must first enter this dummy customer in the
IMG activity <DS:SIMG.FSL_REG_ARTEN>Define Payment Types</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FSL_APPL002 - Customer for &1 &2 does not exist ?

  The SAP error message FSL_APPL002 indicates that the system cannot find a customer record for the specified parameters (usually a customer number and possibly a company code or other identifiers). This error typically occurs in the context of financial transactions, customer master data, or when trying to process documents related to a customer.
  
  Cause:
  
  Non-Existent Customer: The customer number you are trying to use does not exist in the system.
  Incorrect Input: There may be a typo or incorrect entry in the customer number or related fields.
  Data Deletion: The customer record may have been deleted or marked as inactive.
  Company Code Issues: The customer may not be assigned to the company code you are working with.
  Authorization Issues: The user may not have the necessary permissions to view or access the customer data.
  
  
  Solution:
  
  
  Verify Customer Existence:
  
  Use transaction code XD03 (Display Customer) or FD03 (Display Customer - Financial) to check if the customer exists in the system.
  Ensure