CA Question: How Do You Handle E-commerce Client Invoice Rejections on Amazon/Flipkart?

Invoice rejections are a systemic pain point in e-commerce practice, costing CAs hours of manual "investigative" work. Most firms are moving away from inclusive billing toward incident-based or tiered fees to manage this. A pre-validation tool that acts as a "sanity check" for clients before they upload data would significantly reduce friction and save "blocked" payments.

Hi Aashok,

Exactly right — the incident-based billing model shift you mentioned 
is what I'm seeing across the board. The reactive nature of invoice 
reviews creates friction for everyone involved.

That's why I built the pre-validation system — it acts as that "sanity 
check" you mentioned. Clients self-check in 60 seconds before upload, 
which eliminates the emergency escalations entirely.

The tool catches the 3 most common errors that cause payment holds:
1. Wrong tax type (CGST vs IGST for interstate) — 67% of holds
2. Tax calculation mismatches — 22% 
3. GSTIN format issues — 11%

I'm doing free validations to show what it catches in real invoices. 
Would you be open to me running 3 sample invoices? I'll show you the 
exact output — what errors it flags, how it guides users to fix them.

No obligation — just want to validate (pun intended) that it solves 
the friction point you identified.

Happy to do a quick 15-min call or email exchange if that's easier.

Regards,
Rehan
InvoiceCheck.in