Almost platforms allow each item to have maximum 100 variants only and when you create discounted offers with cross-sell or up-sell, there will be many new generated variants. Sometimes you cannot apply discount to specific bundle or item due to this restriction. However, how many variants will be generated?
With discounted up-sell offer, the number of variants will be double. Let's take item X which has 5 variants as an example, the new discounted variants will be 5 too, so the total will be 2x5=10 variants.
When you create a Cross-Sell bundle and offer a lower price for it, each variant of each product included in your Cross-Sell will have additional variants in relevant with each variant of the remaining items. For example, your Cross-Sell offer has 2 items A & B, A has 6 variants and B has 15 variants. The new variants generated are 6x15=90, the total variants of A are 90+6=96 and B's are 15+90=105 (> 100). Thus, the variants of B will be 105 and more than 100 variant limit of platform. That's why you cannot complete creating the offer.
However you can use Sales Motivator to apply discount, this feature will not generate any additional variants, here is the instruction for your reference: https://beeketing.freshdesk.com/solution/articles/6000128347-how-to-create-a-discount-offer-with-sales-motivator
Any further question can be sent to firstname.lastname@example.org.
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