Implementing file attachment support in ticketing systems enhances user experience and support efficiency. Start by defining acceptable file types and size limits based on your storage capacity and security requirements. Common restrictions include maximum file sizes (typically 10-50MB) and allowed extensions (.pdf, .doc, .jpg, etc.).

Store uploaded files in secure, organized directory structures. Consider using cloud storage services for scalability. Implement virus scanning for all uploaded attachments using tools like ClamAV or cloud-based scanning services. Provide clear feedback during upload processes including progress indicators and success/error messages.

Maintain file accessibility controls - ensure only authorized users can view or download attachments. Implement file versioning if multiple updates are expected. Regularly clean up orphaned attachments and provide administrators with attachment management tools.