Integration with external supply chain partners can reduce the risk of process and product development disruptions. Hence, the companies should anticipate and prepare for any risk that could emerge in the supply chain network. This study aims to analyze the role of supply chain integration, information sharing, supply chain quality integration, and innovation systems in improving business performance in the manufacturing industry. The study surveyed manufacturing companies located in East Java, as many as 258 companies. Data was collected using questionnaires designed with a five-point Likert scale and distributed through Google Forms and company visits. 222 questionnaires were distributed through Google Forms, and 36 were distributed during company visits. The smartPLS software version 4.0 was used for descriptive analysis and hypothesis testing. The results showed that supply chain integration positively impacts information sharing, quality integration, and innovation systems. Information sharing significantly supports the implementation of quality integration and innovation systems. However, quality integration does not affect the innovation system. Likewise, innovation systems have no impact on improving business performance. Many manufacturing companies in East Java had not done innovation systems appropriately after the COVID-19 disruption as the company still focused on current processes and products to maintain company sustainability. Furthermore, information sharing, and supply chain quality integration significantly improve business performance. The results of this study could contribute to managers building close partnerships with external parties to maintain the quality of processes and products. Business owners must also consider using the latest technology for process and product innovation. These findings enrich the current supply chain management theory, particularly with quality integration and innovation systems.

Many people are aware of taking care of the global environment, so they demand environmentally friendly business activities. The government also has responded to the commotion by requiring companies to produce friendly and safe products or services to their customers. Hotel industries react to it by implementing the concept of green hotels. The purpose of this study is to examine whether the Internet of Things, strategic green purchasing and green operation have impacted green employee behavior in star-hotels in East Java. Eighty-two (82) questionnaires were distributed, but only 62 questionnaires were valid, with a response rate of 75.60 %. SEM-PLS (Structural Equation Modelling Partial Least Square) was used to analyze the data. The results show that the Internet of Things (IoT) has a significant impact on green hotel operation, with the T-statistic value of 0.378. green purchasing has a significant impact on green hotel operation, with the T-statistic value of 0.545, and green employee behavior, with the T-statistic value of 0.346. The Internet of things (IoT) has no significant impact on green employee behavior directly but through green hotel operation. The use of energy efficiency and the existence of good waste management as indicators of green hotel operation has an impact on green employee behavior of 0.346.

The company builds communication and collaboration with suppliers and customers to increase competitiveness in the supply chain flow. The organization's ability to involve suppliers and customers in business activities to achieve efficiency and effectiveness is one of the objectives of supply chain practice. The distribution of questionnaires directly to hotel practitioners was 25 respondents, and 65 respondents obtained the distribution of google form links. The results showed that supply chain practices with supplier relationship management and quality information sharing activities could increase internal and upstream integration and not directly impact downstream integration. Internal integration with data integration activities accurately and coordination between functions on an ongoing basis can affect upstream and downstream integration and green hotel performance. Upstream integration and downstream integration with joint decision activities and planning synchronization with external parties can directly impact green hotel performance. They were increasing the market share and image of the hotel with the implementation of caring for the environment. This research contributes to hotel practitioners adopting practical supply chains in building internal and external integration to increase competitiveness and theoretical contribution to developing supply chain theory and green performance.