Nexmo Support Guide

This document explains some key information about working with Nexmo Support. Please refer to for more information about our Support programs, including Service Level Objectives (SLOs).

We have these guidelines to help us provide the best possible support for our customers, but we also try to be flexible when it's in our customers' interest.

Support Priorities

The following table defines the criteria and examples for our support priorities. Every support request is important, but some will require Nexmo and our customers to work with a greater sense of urgency. It's in our customers' interest that we make good decisions about which requests require the most immediate response. We will assume that requests submitted by email are normal priority.

If you believe your issue meets the criteria for a different priority level, submit it online at, proposing the priority level.

Once our support engineers review your request, they may adjust the priority to the appropriate level, up or down.


  Definition Criteria Examples


Critical Service Unavailable

All these apply:

  • All or many countries for this customer
  • In production
  • Prevents critical customer functionality
  • No viable workaround exists
  • Nexmo platform unavailable / severely impacted.
  • Technical or Account issue preventing any API call.
  • Supplier outage, preventing service for many countries.


Serious Service Disruption

All these apply:

  • In production
  • Reduces functionality for customer.
  • No viable workaround exists
  • Reach lost to a single major country.
  • Latency for delivery receipts globally.
  • Nexmo dashboard is unavailable.


Other Problem

Any of these apply:

  • In production, no serious impact in functionality.
  • Production Issue, viable workaround exists.
  • Production is not Impacted
  • Non-delivery to specific numbers.
  • Sender ID changed for country, but message delivered.
  • Encoding issue changing specific characters.


Minor or Scheduled

Either of these apply:

  • Work can be scheduled
  • Not impacting development or production
  • Request for enhancement to product.
  • Account queries.
  • Usage Questions about using our products. 


Nexmo Holidays

The SLOs published on refer to business hours and days, which exclude weekends and holidays. Due to the global distribution of our Support team, our business hours are from Monday at 9am in Hong Kong to Friday at 5pm in San Francisco. The holidays vary by location of the team, as follows:






UTC: 16-24

PST: 9am - 5pm
(+1 in summer)

UTC: 8-16

CET: 9am - 5pm
(+1 in summer)

UTC: 24-8

HKT: 9am - 5pm


Tue, Jan 1

Mon, Jan 20    
Mon, Jan 27      ⚫ 
Mon, Feb 17th    
Fri, Apr 10  
Mon, Apr 13    
 Wed, May 1     
Fri, May 8    
Mon, May 25  
Fri, Jul 3    
Mon, Aug 31    
 Thu, Nov 26    
Fri, Nov 27     
Wed, Dec 25
Thu, Dec 26    
2021   To be confirmed


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