During September 2025, Karpovas focused on backend development for the abapGit/abapGit repository, building a feature to validate the existence of data configuration tables. Using ABAP, Karpovas implemented a validate_table_name method that checks whether a referenced table exists and logs errors to a validation log if it does not. This approach helps prevent invalid data references from entering the configuration, thereby improving data integrity and reducing deployment risks. The work demonstrates a methodical application of ABAP development skills to streamline troubleshooting and enhance reliability in deployment workflows, though the scope was limited to a single feature without bug fixes.