Hello @york.zhang,
When uploading a localized value using the Write API, the format should include the @type specification. Here’s an example for reference:
"data": {
"breadcrumbTitle": {
"@type": "@builder.io/core:LocalizedValue",
"Default": "Default title",
"ca-ES": "CA title",
"en-US": "US title"
}
}
Reference: Adding field localization later to the model - #16 by TimG
Please give this a try and let us know if it works for you, or if you run into any issues.
Thanks,