Log mint.mintng_rate_before_multipliers variable in postclientflow in Apigee X

[Edusrdo9Garcia]

Hi i'm trying to log the next variables of Apigee monetization : mint.mintng_rate_before_multipliers, mint.mintng_consumption_pricing_type and mint.mintng_rate. 

I'm using a Service Callout policy attached in the post client flow with the next payload:

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<Payload contentType="application/json">{
"Data": {
"mintng_rate": {mint.mintng_rate},
"mintng_rate_before_multipliers": {mint.mintng_rate_before_multipliers},
"mintng_consumption_pricing_type": {mint.mintng_consumption_pricing_type}
}
}</Payload>

But the policy is executed before that the variables are populated:

Anybody knows if is possible log this 3 variables, thanks in advanced!