Unable to process template language expressions in action 'Send_me_a_mobile_notification'

[SanAndresMan72]

I am receiving the following error message in a Flow I have setup:

InvalidTemplate. Unable to process template language expressions in action 'Send_me_a_mobile_notification' inputs at line '1' and column '2084': 'The template language expression 'json(decodeBase64(triggerOutputs().headers['X-MS-APIM-Tokens']))['$connections']['shared_flowpush']['connectionId']' cannot be evaluated because property 'shared_flowpush' doesn't exist, available properties are 'shared_sql'. Please see https://aka.ms/logicexpressions for usage details.'.

The flow takes the input from a PowerApps application and execute a SQL Server stored procedure with the input given by the user via the app. It then (attempts to) sends out a notification to the mobile Flow app. That step is failing. I don't think I am doing anything out of of the ordinary. The step implements the following expression:

concat('Batch Number ', triggerBody()['Executestoredprocedure_BACHNUMB'], ' has been ', if(equals(triggerBody()['Executestoredprocedure_ACTION'], '1'), 'Approved', 'Rejected'))

I have also placed an @ sign in front of the concat function and that hasn't yielded any results either. This flow was working yesterday and in fact, ran 11 times without any issues. Today, it decided to simply not work and I cannot find any documentation about this error.

Thanks in advanced for your help.

MG.-

Mariano Gomez, MVP

[SanAndresMan72 · Accepted solution]

Fixed this! As it turned out, I had renamed the stored procedure task to StoredProc *AFTER* I had setup the notification task. Unfortunately, PowerApps did not refactor the steps to change the procedure parameters from Executestoredprocedure_Parameter to StoredProc_Parameter causing the subsequent notification step to fail as it couldn't find those specific variables. I had to delete the flow (only 3 steps so not bad) and re-add it as there seems to be no cleanup and recreate it, then remap to the PowerApp app. Oh well, you live you learn.

[RushdiD]

For me the issue was related to a variable I was initializing but had not set the variable before using it.

When testing the flow in edit mode I would receive a success, 

However, when calling it from powerapps it would not work.

Solution was to ensure that the variable was set correctly,

Additionally, I removed and readded the flow to PowerApps.