# TDR Filer

> Self-service validator and official-workbook writer for FAS Sales Reporting Portal (SRP) monthly files. Operated by Dali AI GmbH; not affiliated with GSA.

## Product
- Free validator: https://tdrreporting.com/validator
- Pricing: https://tdrreporting.com/pricing.md
- Validation method and template hash: https://tdrreporting.com/methodology
- Machine-readable validation rules: https://tdrreporting.com/rules.json

## Reporting guides
- MAS/TDR overview: https://tdrreporting.com/gsa-tdr-reporting
- Form entry versus file upload: https://tdrreporting.com/gsa-srp-form-entry-vs-file-upload
- GWAC/MAC non-MAS file: https://tdrreporting.com/gsa-gwac-mac-srp-file-upload
- Upload rejection causes: https://tdrreporting.com/srp-upload-rejected
- Zero-sales reporting: https://tdrreporting.com/zero-sales-tdr-report

## Scope
TDR Filer prepares MAS and GWAC/MAC/BMO tabs from the official SRP Excel template. It does not submit reports, calculate contract-specific liability, or replace instructions from GSA or the Contracting Officer.