Final answer:
Data redundancy creates confusion and makes it difficult for companies to integrate data from different sources.
Step-by-step explanation:
The confusion created by data redundancy makes it difficult for companies to create customer relationship management, supply chain management, or enterprise systems that integrate data from different sources. Data redundancy refers to the unnecessary repetition of data in a database, which can lead to inconsistencies and errors. This redundancy can make it challenging to ensure that the data integrated from different sources is accurate and up-to-date.