The following Transaction Codes are provided after the invocation of a method using either the Web Service or HTTPS Connector. Each Transaction Code is accompanied with a brief summary of the meaning behind the retuned value.

chevron_right	0	= "Authentication succeeded"
chevron_right	1	= "Transaction OK"
chevron_right	2	= "Transaction failure reason unknown"
chevron_right	3	= "Transaction returns no result"
chevron_right	4	= "Transaction returns too many results"
chevron_right	5	= "Amount of transactions per second exceeded"
chevron_right	6	= "Method in maintenance"
chevron_right	200	= "Account not found"
chevron_right	201	= "User not authorised"
chevron_right	202	= "IP address not found"
chevron_right	203	= "Account suspended"
chevron_right	204	= "Insufficient credits"
chevron_right	205	= "Credits threshold reached"
chevron_right	301	= "External login missing"
chevron_right	302	= "Password missing"
chevron_right	303	= "Client billing reference missing"
chevron_right	304	= "Client message reference missing"
chevron_right	305	= "Originator missing"
chevron_right	306	= "Destination missing"
chevron_right	307	= "Body missing"
chevron_right	308	= "Reply data missing"
chevron_right	309	= "Inbound service number missing"
chevron_right	310	= "Premium inbound service shortcode missing"
chevron_right	311	= "Validity is missing"
chevron_right	312	= "ID(s) missing"
chevron_right	313	= "Character set missing"
chevron_right	314	= "Reply method missing"
chevron_right	315	= "RBID missing"
chevron_right	316	= "Reseller code missing"
chevron_right	317	= "Organisation missing"
chevron_right	318	= "Country id missing"
chevron_right	319	= "First name missing"
chevron_right	320	= "Last name missing"
chevron_right	321	= "Email missing"
chevron_right	322	= "New password missing"
chevron_right	323	= "Primary application missing"
chevron_right	324	= "External login to update missing"
chevron_right	325	= "User type missing"
chevron_right	326	= "User missing"
chevron_right	327	= "Contact missing"
chevron_right	328	= "Address1, Town or Postcode missing"
chevron_right	329	= "Mobile phone number missing"
chevron_right	330	= "Client billing reference too long"
chevron_right	331	= "Client message reference too long"
chevron_right	332	= "Originator too long"
chevron_right	333	= "Too many destinations"
chevron_right	334	= "Body too long"
chevron_right	335	= "Inbound service number too long"
chevron_right	336	= "Inbound service keyword too long"
chevron_right	337	= "Reseller code too long"
chevron_right	338	= "Organisation too long"
chevron_right	339	= "First name too long"
chevron_right	340	= "Last name too long"
chevron_right	341	= "Email too long"
chevron_right	342	= "Password too long"
chevron_right	343	= "New password too long"
chevron_right	344	= "Address1 too long"
chevron_right	345	= "Town too long"
chevron_right	346	= Postcode too long
chevron_right	360	= "Originator in wrong format - please see the parameter ReplyMethodID"
chevron_right	361	= "Destination in wrong format"
chevron_right	362	= "Validity out of range"
chevron_right	363	= "Character set not found"
chevron_right	364	= "Reply method not found"
chevron_right	365	= "Method not found"
chevron_right	366	= "Return CSV String not found"
chevron_right	367	= "Country id not found"
chevron_right	368	= "Reseller code not found"
chevron_right	369	= "Primary application not found"
chevron_right	370	= "Character set doesn't match body"
chevron_right	371	= "Email address already in use"
chevron_right	372	= "Email in wrong format"
chevron_right	373	= "External login to use doesn't belong to reseller"
chevron_right	374	= "There must be at least one owner per account"
chevron_right	375	= "The mobile phone number could not be formatted"
chevron_right	376	= "The land line phone number could not be formatted"
chevron_right	377	= "The password must be different to existing one"
chevron_right	380	= "Receive news not found"
chevron_right	381	= "Receive billing email not found"
chevron_right	382	= "Receive alert email not found"
chevron_right	383	= "Receive alert sms not found"
chevron_right	384	= "User type not found"
chevron_right	386	= "Survey not found"
chevron_right	387	= "Questions could not be sent – not enough credit"
chevron_right	388	= "The destinations parameter contained no valid numbers. For surveys that don't allow duplicate enrolments, this includes valid numbers that are already enrolled."
chevron_right	389	= “Numbers already Enrolled and active”
chevron_right	399	= "Unknown error in processing the parameters"
chevron_right	400	= "Client enrolment reference missing"
chevron_right	401	= "Client enrolment reference too long"
chevron_right	404	= “Period too long”
chevron_right	405	= “Enrolment Batch XML missing”
chevron_right	406	= “Enrolment Batch XML was malformed”
chevron_right	407	= “Survey uses placeholders, but none were supplied”
chevron_right	408	= “Placeholders supplied for non-placeholder Survey”
chevron_right	409	= “Number of placeholders supplied was less than the number of placeholders on the Survey”
chevron_right	900	= "White label credits threshold reached"
chevron_right	901	= "Account suspended"