A flexible container (1) for storing a liquid medicament comprises a container wall consisting of two wall sheets (101, 102) of flexible material that are sealed together (13, 14). The container (1) comprises a storage compartment (11) for the liquid medicament, and an access opening (121) on one of the wall sheets (101). The storage compartment (11) and the access opening (121) are in fluid connection. The access opening (121) is designed to be fluidly connected to an outer conduit system (33). An insert part (2) is arranged between the two wall sheets (101, 102) with positive locking, and fluidly connects (22, 23, 221) the storage compartment (11) and the access opening (121).
