Validation Error with start_date ISO 8601 Format in BillingAgreement

[aimondo]

Hi I am using the Paypal Python Rest SDK with python 2.7

this is how my billing agreement dictionary looks like:

ba_dict = {'description': u'Service: DE Run 800 -- Period of Service: 2017-07-08 -- 2017-08-08',
 'name': u'Service: DE Run 800 -- Period of Service: 2017-07-08 -- 2017-08-08',
 'payer': {u'payment_method': u'paypal'},
 'plan': {u'id': u'P-17U60867KM228661N5SIC4YI'},
 'shipping_address': {'city': u'Duesseldorf',
                      'country_code': u'DE',
                      'line1': u'Fleherstr. 32',
                      'line2': u'',
                      'phone': None,
                      'postal_code': u'40223',
                      'state': u'NRW'},
 'start_date': '2017-07-08T08:14:43.937609+00:00'}

after creating a billing agreement object with 

billing_agreement = BillingAgreement(ba_dict)

and this is the error code i am getting when i try billing_agreement.create()

{u'debug_id': u'63bceae5229ac',
u'details': [{u'field': u'start_date',
u'issue': u'Agreement start date is required, should be valid and greater than the current date. Should be consistent with ISO 8601 Format'}],
u'information_link': u'https://developer.paypal.com/webapps/developer/docs/api/#VALIDATION_ERROR',
u'message': u'Invalid request. See details.',
u'name': u'VALIDATION_ERROR'}

to me it looks like my start_date is iso 8601. I am using the datetime function of datetime.datetime.isoformat() to convert my datetime object into iso format. I just don't understand why billing agreement is throwing me a validation error

[MTS_Ciaran]

So the start_date should be in this format:

  "start_date": "2017-12-22T09:13:49Z",

Can you confirm that its actually the SDK thats setting it to the format you mentioned?

[timmygee]

To format the datetime value correctly in Python you need to do:

my_datetime.strftime('%Y-%m-%dT%H:%M:%SZ')

This is taken from the PayPal SDK example here