Why do firms obtain multiple lending products from the same bank? Exploiting the 2016 acquisition of two specialized lenders by a diversified French bank, we test whether multi-product borrowing arises from operational frictions (e.g., search costs) or from informational frictions, which give banks with existing product relationships an advantage over outside lenders. We find that, after the acquisition, only firms using high-information products from the acquired lenders start borrowing from the acquiring bank. Post-merger integration or cross-selling opportunities cannot explain this asymmetry. Our results show that broader scope helps banks retain borrowers by generating information, not by offering convenience.