This error occurs when an employee has already been paid out previously with the same claim number as has generated for them on this run. (This will only occur when an employee changes from one expense group to another within the company)
To resolve the issue please follow the below steps.
Identify the claimant number and claim number where the issue exists.
Go to CoreExpense, click Enquiry, then click Claim Detail Reorder.
Enter the claim number and search.
Check to see if the claim number exists against the same claimant for two different expense runs/payroll periods.
Please raise a new case online and reference the title of this article. Ensure to include the claimant and claim number in question. The support team will remove the new claim and set each of the affected trips back to APPROVED.
Re-run the Generate Payment Claims process and this will pull the trips back into the run under a new claim number.
Proceed with expense run as normal.