How to fix this error on Matlab analysis for your email notification?

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Mthunzi Booi
Mthunzi Booi 2019-12-17
编辑： Hans Scharler 2020-5-14
Hi Team
I have configured using the URL link for email notification below, basically i want to get a notification from email if there is an alert about my channel fields. Question is do i have to change all the default setting when using Matlab analysis as per my own channelID, api key, field names etc?
https://www.mathworks.com/help/thingspeak/analyze-channel-data-to-send-email-notification-from-ifttt.html
Error using webwrite (line 130)
Expected URL to be nonempty.
Error in Trigger Email from IFTTT 1 (line 41)
webwrite(iftttURL,'value1',lastValue,'value2',

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回答（1 个）

Hans Scharler
Hans Scharler 2019-12-18
编辑：Hans Scharler 2020-5-14
Is your channel private? If so, then you need to supply a Read API Key with the URL.
url=strcat('https://api.thingspeak.com/channels/',string(channelID),'/fields/1/last.txt?api_key=XXX');

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