How do I merge together Variation Attribute Values?
To merge two Variation Attribute Values together:
1. Go to your product's Variation Attribute page ( How do I find the Variation Attributes page for a product?)
2. On the page that appears, select the attribute value you wish to merge out (this will be the one you are removing)
3. On the page that appears, Click the Merge With… button
4. On the page that appears, select the Attribute Value you wish to merge into (this will be the one that is kept)
5. Click the Yes, Merge button to confirm the merge.