P PT. Usaha Pintar Pratama is a service company that distributes fresh products such as vegetables, fruits, and packaged products consumed daily. The business processes involve supply chain flows with integrated processes from product procurement to product delivery to customers. In this process, a human error impacted administrative, product inventory, and customer complaints. This research was conducted to minimize human error in the supply chain process flow to evaluate supply chain performance. The adoption of the SCOR Level 1 model was used. Supply chain processes are classified using the Level 1 SCOR model. Identification of complex processes into sub-processes decomposed using HTA, depicted in the form of a diagram. Sub-processes are identified related to the potential for human error and the consequences that can occur using the SHERPA method and to determine the highest probability of human error (HEP) using the HEART method. The results of data processing, there are as many as 13 subtasks where human error occurs and 3 of them have human errors with the highest HEP value, namely the subtask of checking the completeness of the supplier's letter, product validation according to the pick list, and the process of loading the product into the vehicle. To minimize human error, an effort was made to provide suggestions in the form of SOPs for the product validation process and loading process as well as a checklist for checking the completeness of supplier letters. The result of the calculation after implementation is a decrease in the HEP value for the three processes which results in a 52 percent reduction in the subtask of checking the completeness of the supplier's letter, 73 percent of the subtask of product validation according to the pick list, and 82 percent of the subtask of loading the product into the vehicle.