Manage flows synchronous

#1

I have 5 flows in my project, i have to invoke my flows in such a way that if first flow complete then start next flow, how can i achieve this?

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#2

Send a message from the first flow that starts the next, via a link node or through MQTT or similar.

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#3

Have you had a look at https://flows.nodered.org/node/node-red-contrib-simple-message-queue

A simple queue node that stores incoming messages in a memory queue and uses a feedback from a following action or trigger message to release the next message stored in the queue

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