# 409 status code - Duplicate-Invoice error

**URL:** <https://zatca1.discourse.group/t/409-status-code-duplicate-invoice-error/3932>\
**Category:** Clearance and Reporting\
**Created:** [October 30, 2024, 11:11pm UTC](https://zatca1.discourse.group/t/409-status-code-duplicate-invoice-error/3932 "2024-10-30T23:11:55Z")\
**Posts on this page:** 1\
**Showing post:** 104

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**Author:** ![Ankit.K.Tiwari](https://avatars.discourse-cdn.com/v4/letter/a/9d8465/32.png) [@Ankit.K.Tiwari](https://zatca1.discourse.group/u/Ankit.K.Tiwari)\
**Post date:** [May 25, 2025, 1:16pm UTC](https://zatca1.discourse.group/t/409-status-code-duplicate-invoice-error/3932/104 "2025-05-25T13:16:49Z")

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@eCloud @Adithya_Raviraja @mkw @Malik @sameer @Maala @pmohdameen @mohdzeeshan5c0 @Hadi @rudyzidan @Arratech @BEX @plasker @y.khraishi @abin @m.alnoursi @sameer @mohammad.mt

Dear All,  
If you have any concerns on the new front end duplication validation rules (208 for Clearance and 409 for Reporting), please share them on the main thread below or here.

> [@Breaking Change: Checking the duplicate (response codes 208 & 209)](https://zatca1.discourse.group/t/breaking-change-checking-the-duplicate-response-codes-208-209/6859):
>
> New validation rules to check for duplicate invoices (response codes 208 and 409). Dear Community Members, Numerous taxpayers are pushing increasingly large number of duplicate invoices which is resource intensive for no additional value. Therefore, in order to increase efficiency and performance of overall system, ZATCA will introduce new run time validation to check for duplicate invoices in both Clearance and Reporting APIs. Below are the key details: Objective: To improve overall syste…

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_[View the full topic](https://zatca1.discourse.group/t/409-status-code-duplicate-invoice-error/3932)._