Upsell and cross sell are strategies for increasing revenue from existing customers by offering products or services that are relevant to their needs. Upselling encourages a customer to consider a higher-value or more comprehensive product, while cross-selling recommends complementary products from the same business or another business line.
For banks and financial institutions, this could mean identifying an existing savings-account customer who may be eligible for a credit card, personal loan, insurance product, investment product, or other relevant financial service.

Cross-selling involves offering an additional or complementary product, while upselling involves encouraging a customer to move to a higher-value version, tier, or product. So, in a cross sell, a bank offers a credit card to an existing savings-account customer. While in an upsell, they offer a premium account or higher-value financial product to an existing customer.

When enterprises operate across multiple product lines, such as loans, credit cards, insurance, and deposits, siloed customer records result in redundant marketing pitches and wasted acquisition budgets. Resolving these customer records from multiple systems into a unified customer view identifies existing relationships and avoids treating the same customer as a new prospect. This helps businesses understand what products a customer already holds, which business lines they interact with, and where additional product opportunities may exist.

Cross sell analytics in banking helps them identify cross-sell opportunities by first creating a consolidated view of customers across products and business lines. The resulting customer view can then be used to identify product gaps, segment customers, and create targeted offers rather than sending the same campaign to every customer. Further, it helps banks avoid offering existing customers products they already have.

NBFCs can use customer analytics to understand relationships across loan products, customer segments, branches, channels, and associated financial services. It can help identify customers who already have one financial relationship but may be relevant for another product. It can also help remove existing customers from acquisition lists before campaigns are launched.

Customer MDM improves upsell and cross sell by creating a consistent view of the customer across business systems. Instead of analyzing disconnected records, organizations can work from a unified customer identity and understand the customer's existing relationships. This can help answer questions such as:
Which products does this customer already have?
Which business lines already serve the customer?
Is this prospect actually an existing customer?
Which relevant products does the customer not currently hold?
Which customers should be included or excluded from a campaign?