Error in user YAML: (<unknown>): found character that cannot start any token while scanning for the next token at line 4 column 16

---
title: Add active from to tax rule
issue: NEXT-29559
author: Marcin Kaczor
author_github: @CodeproSpace
---

Core

Changed in src/Core/System/SalesChannel/Context/SalesChannelContextFactory.php file. First, I check which rule has the highest (lowest) position. If there are 2 records with the same position, then the date is checked and the newer one is selected.
Added active_from datetime column in tax_rule table src/Core/Migration/V6_5/Migration1688927492AddTaxActiveFromField.php
Added function filterByTypePosition in src/Core/System/Tax/Aggregate/TaxRule/TaxRuleCollection.php
Added function highestTypePosition in src/Core/System/Tax/Aggregate/TaxRule/TaxRuleCollection.php
Added function latestActivationDate in src/Core/System/Tax/Aggregate/TaxRule/TaxRuleCollection.php
Added activeFrom in TaxRule definition src/Core/System/Tax/Aggregate/TaxRule/TaxRuleDefinition.php
Added activeFrom in TaxRule entity src/Core/System/Tax/Aggregate/TaxRule/TaxRuleEntity.php
Added AbstractTaxRuleTypeFilter implementing TaxRuleTypeFilterInterface, because all filters has activeFrom matching
Added activeFrom matching in filers: EntireCountryRuleTypeFilter, IndividualStatesRuleTypeFilter, ZipCodeRangeRuleTypeFilter, ZipCodeRuleTypeFilter

Administration

Added field to add activeFrom date time src/Administration/Resources/app/administration/src/module/sw-settings-tax/component/sw-settings-tax-rule-modal/sw-settings-tax-rule-modal.html.twig
Added activeFrom to data grid src/Administration/Resources/app/administration/src/module/sw-settings-tax/component/sw-tax-rule-card/index.js
Added activeFrom in tax rules list src/Administration/Resources/app/administration/src/module/sw-settings-tax/component/sw-tax-rule-card/index.js