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Power Platform Community / Forums / Power Apps / How to debug PCF event...
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How to debug PCF event handler (not PCF code)

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I have a PCF component that issues an output event. This all works as expected although randomly the OnChange logic stops being invoked even though I can see my components getOutputs is returning new data.

 

Anybody know why that could be? There is no way to debug what is going on between the retrieval of new data from getOutputs and the execution of the OnChange formula. Clearly something has gone wrong in there. If I put a Trace right at the start of my formula that never gets logged.

 

Also do you know if there is a limit to the data size returned from OnChange. Specifically I am returning potentially a very large JSON object. I have my output defined as SingleLine.Text, there appears to be no limit associated with that data type? The error I am reporting tends to happen when my output data is 250k+ and even though it churns through that data it then refuses to process anything further.

 

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