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R12 _GST: Error when calculating tax ZX_TRL_MANAGE_TAX_PKG.Create_Detail_Lines Exception:-1:ORA-00001: unique constraint (ZX.ZX_LINES_U1) violated (Doc ID 2302432.1)

Last updated on SEPTEMBER 06, 2017

Applies to:

Oracle Financials for India - Version 12.1.3 and later
Information in this document applies to any platform.


On : 12.1.3 version, GST

The client made a setup in ebtax to solve the India GST requirements
they created a unique offset taxe used for all type of India GST tax : CGST, IGST & SGST

When attempting to calculate tax (
the following error occurs.

Could not update the Payables information for the modification done in Tax window due to : An Unexpected error has occurred.

The issue can be reproduced at will with the following steps:
1. calculate tax for one invoice

The issue has the following business impact:
Due to this issue, users cannot calculate offset tax invoices


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