At least in the Java SDK, they both seem to be a locally executed function whose result becomes part of the event history. Is there any nuance to be aware of when choosing between one or the other?

What is the difference between a Local Activity and a Side Effect?

jreynolds23 October 10, 2022, 1:49pm 4

Also, please consider this response when trying to use local activities vs activities.

Topic		Replies	Views
A Question about local activity Community Support	5	440	April 21, 2021
Local Activity vs Activity Community Support activity , local-activity	23	13006	June 23, 2022
Temporal Activity vs LocalActivity behavior on Workflow replay Community Support activity , local-activity	5	354	July 28, 2023
Can an activity execute another activity? Community Support general-impl	1	752	November 29, 2021
Difference Between workflow.ExecuteActivity() and workflow.ExecuteActivity() under a workflow.GO() Community Support go-sdk	1	142	January 29, 2024