How to Snap Points to the Nearest Location on a Polyline in FME 2023?

You might want to use the AnchoredSnapper transformer instead. 

 

Hi ​@gbcfgeo2025 ,

If the requirement was to snap the points to the closest vertex of a line, AnchoredSnapper (Snapping Type: Vertex Snapping) would work as expected. However, I think a combination of NeighborFinder and VertexCreator would be better, if you need to snap the points to the closest location on a line regardless of it matches a vertex or not.

1. NeighborFinder : Send the point features to the Base port, send the line features to the Candidate port.
2. VertexCreator (Mode: Replace with Point) : Move the points to the closest location on a line. 

Just be aware, the coordinates of a moved point could not match the coordinates of a point on the line with mathmatical precision, since there must be an unavoidable calculation error with computer calculation.