Error while integrating Eloqua custom app in Campaign canvas -- with specific fields
I have created a custom app with Action service. This service is integrated to a form, when user submits a form data needs to be flown through this service and push to third party API.
There are couple of fields for this form. when I drag and drop to canvas it fails with 500-Internal server error.
When I have few custom fields(OID, Business category ) it throws error. If I exclude these in create API then integration works fine.
All field settings looks same across. The error message doesn't give much information.