Some Problem about api ： /sp/rules/campaignOptimization，the res always ：”Invalid request body'“

[CoderWeiAden]

Hello everyone，May I ask why my request is getting an error message: 'Invalid request body'，this is my detail info about request.

my request body is :
{ "recurrence": "DAILY", "ruleAction": "ADOPT", "ruleCondition": [ { "metricName": "ROAS", "comparisonOperator": "GREATER_THAN", "threshold": 3.7 } ], "ruleType": "BID", "ruleName": "sp-53874-RULE_BID", "campaignIds": [ "351808859999999999" ] }

my resp is :
{ "message": "Invalid request body" }

From the parameter structure and actual values, no issues were found, but why is there still an error reporting that my parameters are problematic

[kdwivedi13]

Change threshold from numeric 3.7 to string "3.7" in your request body—the API expects threshold values as strings, not numbers. let me know if this works ?

[CoderWeiAden]

Change threshold from numeric 3.7 to string "3.7" in your request body—the API expects threshold values as strings, not numbers. let me know if this works ?

I followed your suggestion and updated the threshold field to a string value (changed 3.7 to "3.7" in the request body). I also confirmed that the field type is now String on our side.

However, the request is still failing with the same error.

Could you please help confirm whether there are any other fields that must be sent as strings, or share a sample request body that is known to work?