Is it possible to determine access level of google account through which my app connects to adwords?

I am trying to implement OfflineConversionTracking as follows:

ConversionTrackerServiceInterface conversionTrackerService = new AdWordsServices().get(session, ConversionTrackerServiceInterface.class);

ConversionTrackerOperation uploadConversionOperation = new ConversionTrackerOperation();

uploadConversionOperation.setOperator(Operator.ADD);

uploadConversionOperation.setOperand(operandVariable);

ConversionTrackerReturnValue conversionTrackerReturnValue = conversionTrackerService.mutate(new ConversionTrackerOperation[] {uploadConversionOperation });

for some accounts call to conversionTrackerService.mutate results in OperationAccessDenied.ACTION_NOT_PERMITTED exception being thrown. 

Given the explanation of the error here: https://developers.google.com/adwords/api/docs/reference/v201509/OfflineConversionFeedService, it is my understanding that the authenticated google account doesn't have permissions to modify target adwords account. 

The question is:

How does one check if an authenticated google account has a permission to modify target adwords account before attempting a mutate call?

It would be useful to catch this right after completion of oauth flow and suggest a corrective action to a user.

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