Cycles limit too low error

docs/references/execution-errors.mdx

@@ -629,6 +629,17 @@ To diagnose this error, use the [`dfx canister status`][dfx-canister-status] com
 
 To fix this error, consider increasing the canister's reserved cycles limit, or moving it to a subnet with lower memory usage.
 
+### Reserved cycles limit is too low
+
+There was an attempt to update the canister's settings and change the reserved cycles limit field to a value that is lower than the already reserved cycles balance of the canister.
+
+An example of this error is:
+
+```
+  Cannot set the reserved cycles limit 1000 below the reserved cycles balance of the canister 2000.
+```
+
+To fix this error, increase the reserved cycles limit to be above the reported reserved cycles balance.
 
 ### Wasm chunk store error
 There was an error while executing a method to manipulate the canister's [Wasm chunk store](/docs/current/references/ic-interface-spec#ic-upload_chunk) (e.g. `upload_chunk`, `clear_chunk_store`, `install_chunked_code`, etc.).