According to the IIA guidance, when determining the need to follow-up on recommendations, the internal audit activity should consider factors such as the degree of effort and cost needed to correct the reported condition, the complexity of the corrective action, and the impact that may result should the corrective action fail. These factors are critical in assessing the importance and urgency of follow-up. However, the amount of resources required to conduct the follow-up activities should not be a primary consideration, as the focus should be on the significance of the issues and the potential risks associated with them. References: IIA Standard 2500 - Monitoring Progress, IIA Practice Advisory 2500.A1-1