1. You can judge whether the sku attribute support custom value through this api "aliexpress.category.redefining.getchildattributesresultbypostcateidandpath"
https://developers.aliexpress.com/en/doc.htm?docId=29988&docType=2
If support, the "features" for the attribute will include the field "AE_FEATURE_PUserDefineStrategy",
and the value list for it will include "BR". Such as:
{
"attribute_show_type_value": "check_box",
"customized_name": true,
"customized_pic": true,
"features": "{\"AE_FEATURE_PUserDefineStrategy\":\"ES,BR\"}",
"id": 14,
}
2.The attribute "color"(name_id=14) of category 200004358 has supported it, you can use it for test.
3.If the sku attributes support custom value, you can upload the custom value which IS NOT IN the value list provided by Ali with "sku_attribute_name_id" and "sku_attribute_value". Such as :
{
"sku_attribute_name_id": "14",
"sku_attribute_value":"MyRed"
}
4.IMPORTANT, if seller's input text IS IN the value list provided by Ali. You'd better upload the related "sku_attribute_value_id" as before, it will help the item to get more traffics of search and recommend on our platform. Such as:
{
"sku_attribute_name_id": "14",
"sku_attribute_value_id":"771"
}
