Description of Issue

Mississippi (MS) ICESA file is being rejected when uploading to the MSDES (Mississippi Dept of Employment Security) website, with the message:
The file doesn't conform to the specified format or contains invalid data. Verify the content and upload again.

Context

Payroll
Mississippi
MS Unemployment Report

Cause

An incorrect account number was entered in the MESC Account field when the report was created.

Resolution

Enter the correct MESC Account number, which should be ten-digits long.

Additional Information

The MESC Account in Munis is called the Employer Account Number (EAN) on the MDES ReEmployMS employer portal.
The error message above is generic and may have many other triggers.

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