The Merge action combines results from two or more blocks. The structure of the results being merged must be identical, with the exception of the root node for each result, or a selected, repeating portion of all results must be the same.

Before you can assign properties, connect two or more blocks as input to Merge. The properties you can set for this block depend on the format of the sources you are merging. See Properties for Web Feed Sources or Properties for Sources That Are Not Web Feeds.