Error with JSON webhook - Sending data with JSON - json

Question

I have problem with webhook, or to be more accurate - with sending data with POST method using endpoint.
I am using this endpoint for POST method:
https://edapi.campaigner.com/v1/Import/AddOrUpdate?ApiKey=apikey_value
and this JSON snippet:
{
"Subscribers": [
{
"EmailAddress": "email",
"CustomFields": [
{
"FieldName": "Source",
"Value": "source"
},
{
"FieldName": "Campaign",
"Value": "campaign"
},
{
"FieldName": "Medium",
"Value": "medium"
}
],
"Lists": [
200468800
]
}
]
}
But, after I set automation workflow to trigger transfer data from one database (provider 1) to another base (provider 2) I get error:
{
"ContactsSubmitted": 1,
"Successes": 0,
"Failures": [
{
"EmailAddress": "email",
"ErrorCode": 101,
"Message": "Invalid Email Address"
}
]
}
Any suggestions? Additional explanation: FieldName is name from provider 2 and field value is name from provider 1.

Answer 1

Missing [some_variable ] is part where my code throws and error. So, the right code is:
{
"Subscribers": [
{
"EmailAddress": "[email]",
"CustomFields": [
{
"FieldName": "Source",
"Value": "[source]"
},
{
"FieldName": "Campaign",
"Value": "[campaign]"
},
{
"FieldName": "Medium",
"Value": "[medium]"
}
],
"Lists": [
200468800
]
}
]
}