Documentation updates, March 2026
March 17, 2026
We have updated the localization reference documentation and the Shopify manage transaction guide.
Localization: expanded language support for JavaScript UI Components and Payment Pages v2
The localization reference page has been updated with an expanded list of supported languages for JavaScript UI Components and Payment Pages v2.
The following languages are now documented in addition to the previously listed ones:
- Bulgarian (
bg,bg-BG) - Croatian (
hr,hr-HR) - Czech (
cs,cs-CZ) - Estonian (
et,et-EE) - Finnish (
fi,fi-FI) - French (
fr,fr-FR) - Greek (
el,el-GR) - Hungarian (
hu,hu-HU) - Italian (
it,it-IT) - Latvian (
lv,lv-LV) - Lithuanian (
lt,lt-LT) - Polish (
pl,pl-PL) - Portuguese (
pt,pt-PT) - Romanian (
ro,ro-RO) - Russian (
ru,ru-RU) - Slovakian (
sk,sk-SK) - Slovenian (
sl,sl-SI) - Spanish (
es,es-ES) - Swedish (
sv,sv-SE) - Turkish (
tr,tr-TR)
The Accept-Language header name for the Unzer API/SDK row has also been corrected to use the proper casing.
Shopify: clarification on deactivating versus uninstalling a payment app
The Shopify manage transaction guide now includes a note clarifying what happens to existing payments when a payment app is deactivated or uninstalled:
- Deactivating an app – Captures, refunds, and cancellations on payments made with that app remain available.
- Uninstalling an app – Captures, refunds, and cancellations on payments made with that app are no longer available.