Uncertainty of organisation of resource flows complicates the tasks of planning the production output in a company, which could result in problem situations with considerable expenditures for their overcoming, since such situations, first of all, cause temporal shifts in the process of production of finished products and, consequently, in execution of customer orders. In order to reduce expenditures on the main activity of a company and minimise losses from violations in provision of technological processes with material resources, the article studies the models of determination of an optimal volume of orders on supply of resources, tasks of volume and calendar planning and connections between these models and tasks. Moreover, provision of these connections is subject to the general managerial task on synchronisation of the spheres of provision, production and sales for reliable and economic execution of orders from customers. In order to achieve high effectiveness of multi-stage processes of production and sales of products, the article also solves the tasks of managing non-stock resources.
