1. Two different products cannot be merged into one parent body. The merged parent body must be the same product, and there are only individual dimensions between these products, such as color, size, etc.

2. Now most of the reviews of Amazon products follow the child body, so the merged child body can share reviews.

3. Being split because Amazon will check your parent body, including whether the following child bodies meet the requirements of the child body. Such operations of merging different products are illegal operations. If you perform this operation multiple times, you may receive warnings from Amazon or even close your store.