Good day
I have a flow that has to add multiple variables under the "SumAll" Compose item:

My formula looks like this:
add(variables('var2MulBusinessCase'), add(variables('var3MulKeyRisks'), add(variables('var4MulFitness'), add(variables('var5MulLegal'), add(variables('var5MulCreditRisk'), add(variables('var5MulESG'), add(variables('var5MulCompliance'), add(variables('var5MulCSG'), add(variables('var6MulTeamPerform'), add(variables('var7MulTurnaround'), add(variables('varmul1QltyRep'))))))))))))
This is the error I'm getting:
"Unable to process template language expressions in action 'SumAll' inputs at line '0' and column '0': 'The template language function 'add' expects two numeric parameters: the first summand as the first parameter and the second summand as the second parameter. The function was invoked with '1' parameter(s)."
Your kind assistance would be appreciated.