# Filter not working as expected

**URL:** <https://discuss.tryton.org/t/filter-not-working-as-expected/5544>\
**Category:** User\
**Created:** [September 19, 2022, 11:23am UTC](https://discuss.tryton.org/t/filter-not-working-as-expected/5544 "2022-09-19T11:23:34Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![acaubet](https://discuss-cdn.tryton.org/user_avatar/discuss.tryton.org/acaubet/32/1493_2.png) [@acaubet](https://discuss.tryton.org/u/acaubet)\
**Post date:** [September 19, 2022, 11:23am UTC](https://discuss.tryton.org/t/filter-not-working-as-expected/5544/1 "2022-09-19T11:23:34Z")

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On Party list, I’m trying to apply the following filter with no success (no results, but there are parties with this type):  
`"Tax Identifier.Type": "European VAT Number"`

I am missing something?

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**Author:** ![ced](https://discuss-cdn.tryton.org/user_avatar/discuss.tryton.org/ced/32/1237_2.png) [@ced](https://discuss.tryton.org/u/ced)\
**Post date:** [September 19, 2022, 11:45am UTC](https://discuss.tryton.org/t/filter-not-working-as-expected/5544/2 "2022-09-19T11:45:09Z")

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The `search_tax_identifier` does not support dot notation.

> **[Manage nested clause when searching on tax identifier (#11712) · Issues ·...](https://foss.heptapod.net/tryton/tryton/-/issues/11712)**
>
> From https://discuss.tryton.org/t/filter-not-working-as-expected/5544

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**Author:** ![system](https://discuss-cdn.tryton.org/uploads/default/original/1X/c6f8ec0a40525cdcd50058c734283450a4b3d38b.png) [@system](https://discuss.tryton.org/u/system)\
**Post date:** [October 19, 2022, 11:45am UTC](https://discuss.tryton.org/t/filter-not-working-as-expected/5544/3 "2022-10-19T11:45:37Z")

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