//Trying to get accestoken:
POST /rs/shops/PMAppReview/token HTTP/1.1
Content-Type: application/x-www-form-urlencoded
Host: sandbox.epages.com
Connection: close
User-Agent: Paw/2.2.9 (Macintosh; OS X/10.11.0) GCDHTTPRequest
Content-Length: 131

code=rkPHrw54OSzKpiBWphK415WszGFMewCy&client_id=C1B03F81-FEED-4BF6-A801-C2DDDE0AC857&client_secret=XW5egIAezSzn7V14zUXnxsbPaTNowoTX

//Response:
HTTP/1.1 200 OK
Server: nginx
Date: Tue, 09 Feb 2016 17:31:13 GMT
Content-Type: application/json
Content-Length: 51
Connection: close
Access-Control-Allow-Origin: *
X-ePages-Media-Type: application/vnd.epages.v1+json
X-Powered-By: ePagesJ(6.17.38)
Vary: Accept-Encoding,User-Agent

{"access_token":"EIGHfD2cMacFtXI9Vz4aXua3aVLT1lRy"}

//Trying to sync products
GET /rs/shops/PMAppReview/products?page=1&resultsPerPage=50&currency=EUR&locale=nl_NL HTTP/1.1
Authorization: Bearer EIGHfD2cMacFtXI9Vz4aXua3aVLT1lRy
Content-Type: application/x-www-form-urlencoded
Host: sandbox.epages.com
Connection: close
User-Agent: Paw/2.2.9 (Macintosh; OS X/10.11.0) GCDHTTPRequest

//Response
HTTP/1.1 400 Bad Request
Server: nginx
Date: Tue, 09 Feb 2016 17:36:49 GMT
Content-Type: application/json
Content-Length: 138
Connection: close
Access-Control-Allow-Origin: *
X-Powered-By: ePagesJ(6.17.38)
X-RateLimit-Reset: 2016-02-09T18:36:49.730Z
X-RateLimit-Limit: 6000
X-RateLimit-Remaining: 5999
Vary: Accept-Encoding,User-Agent

{"message":"Locale [nl_NL] not available. Available locales: [de_DE], Request: GET /rs/shops/PMAppReview/products","status":"Bad Request"}