Two new configuration methods have been added to the "Restriction type" in Bundle Rules.
Can Only Be Bundled With Specified Products
This restricts the target product so it can only be purchased in combination with specified partner products. For example, you could set up a rule where "replacement filters can only be purchased together with the corresponding water purifier." No restriction is applied to the partner product side, so the partner product can still be freely combined with other products.
Cannot Be Bundled With Specified Products
This prevents the target product from being bundled only with the specified products. This is useful for cases like "I don't want customers to purchase supplements with conflicting ingredients together." Combinations with any other products are not restricted.
For both methods, "All products" cannot be specified as the target product — you must specify a collection, product, or tag. Existing rules are not affected. You can select these options from "Restriction type" in the Bundle Rule creation/edit screen.
