fileX does not allow rename or delete operations on files at the download locations.

This could be due to lack of proper/required FINRA entitlements to the specific application you are trying to upload/download. Please contact FINRA support team.

This may happen due to variety of reasons ranging from slow network connection to large file size. It is recommended to wait for few minutes for fileX service to pick up the file(s) before reaching out to FINRA support team.

fileX does not allow any changes/operations to the file like changing the owner (CHMOD) or renaming the file. If customers perform these tasks after uploading the file, it would become unusable and customers have to reupload the file. 

Some SFTP clients attempt these actions by default, so they should be disabled.

fileX service does not put any limit on the file size for SFTP. However it is recommended to keep the file size under 60GB to have better control over the file transfer process. If you have a need to transfer very large files, please contact FINRA support to facilitate such transmissions.

fileX service allows all letters (a-z)(A-Z), numbers (0-9) and special characters (: ! @ , & - = ' _). However file name should not contain ‘#’ as anything after this character in the filename would be ignored. 
Each FINRA application may enforce a certain naming convention, please check with that application contacts for additional restrictions.

fileX service keeps a copy of uploaded files in an archive sub-space, corresponding to the incoming application sub-space where file was originally uploaded. All files are retained in the archive sub-space for 30 calendar days. How to track a file's progress? 

File Tracking API allows users to track files uploaded through REST API.  For SFTP and S3 Direct, please contact the FINRA support to check the status of a submitted file.

fileX does not allow recursive PUT operations.

FINRA handles every uploaded file as a separate submission and delivers to the application that processes that submitted data. Please contact the FINRA support team for guidance in handling re-uploads in specific scenarios.