Recent taxonomic work suggests that Partula flexuosa and P. similaris should be included as synonyms of P. micans (J. Gerlach, pers. comm. 2018). However, no publication is available to confirm this yet. The current Red List assessment therefore includes P. milleri and P. coxi as synonyms (following Gerlach 2016), but P. flexuosa and P. similaris are assessed as separate species.

Partula micans is a tree snail species with a range extending from islets in eastern New Guinea to the Solomon Islands. Given the lack of known major threats to this species and its wide geographic range with multiple localities in the Solomon Islands and Bougainville Province of Papua New Guinea, this species is assessed as Least Concern. 

This species ranges from eastern New Guinea islets to the Solomon Islands. Atypically for a partulid, it occurs on low islands and also around coastal villages on large high islands, but not in the native interior forest. O'Foighil et al. (2011) proposed that this distribution pattern strongly implicates human introduction as the dispersive mechanism. The extent of occurrence for this species is in excess of 60,000 km². This is an extraordinary distribution for a partulid; most are single-island endemics.

There are no population data available since 1966, but Y. Kondo's unpublished field notes show that it is associated with coastal anthropogenic habitats on many islands, big and small. However, population densities appeared to be low.

Unusually for Partulidae, Kondo recorded this species as inhabiting the near-littoral zone, often in agricultural settings on the outskirts of villages and margins of plantations.

Currently, there are no known major threats to this species. Coastal habitat alteration could affect it, however, as this species is found in human-disturbed coastal habitats, it is probably tolerant of anthropogenic disturbances. Introduced predators are common threats to partulids. However, this species may itself have been introduced by humans to much of its present range: Kondo speculates on this in his unpublished field notes.

Many partulids were used in necklace making but no trade was recorded in this species.

It is not known if this species occurs in any protected areas. No species-specific conservation measures exist. Further work on the species' taxonomy is necessary as the species may be part of a complex.