https://portaldev.eonpayments.com/api/v01/merchants/[merchant-code]/phases                
            Represents phases definition used by the merchant for debt aging classification.
UniBill only
Note: not supported by sub-merchants (merchant accounts).
                                                                        | Method: DELETE | Implicit: Yes | Returns: ServiceResponse | 
| Consumes: xurl | Produces: json, xml | |
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                                        Deletes phase definitions of the selected merchant. 
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                                                                        | Method: GET | Implicit: Yes | Returns: MerchantPhases * | 
| Consumes: xurl | Produces: json, xml | |
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                                        Provides access to the phase definitions of the merchant. 
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                                                                        | Method: POST | Implicit: Yes | Returns: MerchantPhases * | 
| Consumes: json, xml, xurl | Produces: json, xml | |
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                                        Modifies phase definitions of the selected merchant. 
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| # | Name | Type | Required | Default | Description | 
|---|---|---|---|---|---|
| 01 | object | MerchantPhases * | Yes | 
                                                                                                                        Updated object information. Encapsulates information on time intervals that are used to classify outstanding debt.  |