Factors Influencing Logistics Management of 3 PL Service Companies to 4 PL in the recession of COVID-19

This research aims to explore 1. the fundamentals of a logistics service company with lean concept transformation factor 3PL and development management from 4PL, 2. relationship between fundamental factors 3PL, 3. change Development Logistics Management 3LP 4P, 4. influencing 4L, 5. transformational 4PL.with transition eliminating extravagance waste value based on clients concept: tasks resulting in balance profit. The samples used this were Bangkok perimeter. is survey research. Questionnaires are tools for collecting data. Data analysis through percentage, mean, standard deviation, Chi-square test statistics, Pearson correlation coefficient, multiple regression analysis. especially if supply chains disrupted. COVID-19 also added uncertainty business operation.