The manuscript aims at analyzing the role played by ERP, BI systems and the combined adoption of ERP and BI in reducing or managing information overload/underload, and thus in improving the information quality perceived by Italian managers. Furthermore, the manuscript analyzes the effects of information flow on the perceived information quality. The analysis was carried out through a survey on a sample of 300 managers who work for Italian listed or non-listed companies of varying size. The participants-Chief Information Officers, Chief Technology Officers, Chief Executive Officers and Controllers-were randomly selected from the LinkedIn social network database, since some scholars have recently stressed the relevance and widespread use of this social media application. We received back 79 answers, with a 26\% rate of response. A set of regression and t-test analyses was performed. The main practical implication of our research is that it helps managers understand the impacts an investment in ERP or BI systems could have on information management and on the decision-making process. Other practical implications pertain to the methodology used in our study: in fact, managers may conduct an internal survey similar to that used for this study to assess the pre-conditions for investing in ERP and/or BI systems by (a) examining the information quality perceived by employees and managers, (b) analyzing the employees' and managers' perception of information overload/underload, and (c) investigating the perception of employees and managers regarding the current IT.