Validate Fedex Location Search Request - web-services

Question

We have integrated Fedex API in a ruby on rails application .
We need nearest drop off locations . We want to filter locations by DANGEROUS_GOODS_SERVICES.
We have checked the fedex locationService pdf file and we found the following xml request format that we are requesting .
Request
<SearchLocationsRequest xmlns="http://fedex.com/ws/locs/v3">
<UserCredential>
<Key>XXXXXXXXXXXX</Key>
<Password>XXXXXXXXXXXXXX</Password>
</UserCredential>
<WebAuthenticationDetail/>
<ClientDetail>
<AccountNumber>XXXXXXXXXX</AccountNumber>
<MeterNumber>XXXXXXXXX</MeterNumber>
<Region>us</Region>
</ClientDetail>
<Version>
<ServiceId>locs</ServiceId>
<Major>1</Major>
<Intermediate>0</Intermediate>
<Minor>0</Minor>
</Version>
<EffectiveDate>2016-04-13</EffectiveDate>
<LocationsSearchCriterion>ADDRESS</LocationsSearchCriterion>
<Address>
<StreetLines>811 E 1950 N</StreetLines>
<City>Spanish Fork</City>
<StateOrProvinceCode/>
<PostalCode>84660</PostalCode>
<UrbanizationCode/>
<CountryCode>US</CountryCode>
<Residential>0</Residential>
</Address>
<PhoneNumber/>
<GeographicCoordinates/>
<MultipleMatchesAction>RETURN_ALL</MultipleMatchesAction>
<SortDetail>
<Criterion>DISTANCE</Criterion>
<Order>LOWEST_TO_HIGHEST</Order>
</SortDetail>
<Constraints>
<RadiusDistance>
<Value>10.0</Value>
<Units>KM</Units>
</RadiusDistance>
</Constraints>
</SearchLocationsRequest>
Response
{"SearchLocationsReply"=>{"HighestSeverity"=>"ERROR", "Notifications"=>{"Severity"=>"ERROR", "Source"=>"prof", "Code"=>"1000", "Message"=>"Authentication Failed"}, "Version"=>{"ServiceId"=>"locs", "Major"=>"1", "Intermediate"=>"0", "Minor"=>"0"}}}
Authentication failed message we are getting, while the same credentails are working for getting rates and labels.

Answer 1

I had the same problem than you, after several hours I discovered that the problem was some invisible characteres copied from the fedex email confirmation. In a text editor was possible to see them:
Be careful with the strange characters at the begin and at the end of the key/passwords.
The problem was solved after strip those characters.