In PlentyONE, product listings for multiple variations of an item are grouped under a shared group ID. When exported to Temu, this results in a single product on Temu (goodsId) with multiple variations (each with its own SKU ID).

If you later create additional product listings for further variations of the same item, these are assigned a new group ID. When exported to Temu, a new product (new goodsId) is created on Temu. The variations are therefore not added to the existing Temu product but created under a separate product.

Important:
If you want all variations to appear under a single product on Temu:

1. Delete all existing product listings for the item in PlentyONE.
2. Then create new product listings for all variations of the item together (including any newly added variations).