How To Fix FR139 - Name of the OS/2 or DOS files should have the format OTYY(old)/OPYY(new)

FR139 - Overview

• Message type: E = Error

• Message class: FR - Messages for FI Reporting

• Message number: 139

• Message text: Name of the OS/2 or DOS files should have the format OTYY(old)/OPYY(new)

What causes this issue?

The Spanish tax authorities stipulate that the name of the file on disk
takes the form OTYY (old)/OPYY (new), in which YY is replaced by the
last two digits of the year to be reported.
Thus the file for the 1993 annual sales report would be called OT93
(old)/OP93 (new).

Error message extract from SAP system. Copyright SAP SE.

FR139 - Details

• The SAP error message FR139 indicates an issue with the naming convention of OS/2 or DOS files in the context of SAP. This error typically arises when the file names do not conform to the expected format, which is specified as OTYY for old files and OPYY for new files, where YY represents the last two digits of the year.
  
  Cause:
  The error occurs when:
  
  The file names do not follow the required naming convention (e.g., they may be missing the "O" prefix or the year format).
  There may be a mismatch between the expected file names and the actual files present in the system.
  The system is trying to access or process files that are incorrectly named or formatted.
  
  
  Solution:
  To resolve the FR139 error, you can take the following steps:
  
  
  Check File Names: Verify that the file names in the specified directory conform to the required format:
  
  For old files: OTYY (e.g., OT23 for the year 2023)
  For