Final answer:
Volume changes in customer delivery requirements and requests for customization are sources of internal supply chain disruption. These can result in logistical challenges and increased production costs. The COVID-19 pandemic highlighted these issues, causing businesses to navigate through increases in prices and changes in consumer demand.
Step-by-step explanation:
One source of disruption in the internal supply chain is volume changes in customer delivery requirements. This can happen when there's a sudden increase or decrease in the quantity demanded by customers, forcing companies to adjust their production levels. These adjustments can pose logistical challenges and cost implications, impacting the smooth functioning of the supply chain.
Another notable source of disruption is requests for customization. Customization demands can complicate production scheduling and inventory management, as companies must adapt their processes to accommodate unique customer preferences. These alterations often require additional time and resources, which can lead to inefficiencies in the supply chain.
During the COVID-19 pandemic, for example, many businesses experienced supply chain disruptions due to lockdowns and a slow down in production. The ripple effects of these disruptions resulted in increased prices due to the imbalance between supply and demand. Businesses had to adapt to global and technological shifts, such as increased online competition and changes in consumer behavior, to survive in a rapidly changing market landscape.