Hello,

I recently got a paypal error from an attempted purchase by a customer. Errorcode is 10413. "The totals of the cart item amounts do not match order amounts."

Looking through the debug log below, it does seem like if I add up the individual product amounts they come to £72.89. But the headline amount is [AMT] => 72.63

We were running a sale with a 10% discount at the time and I'm wondering if there is a rounding error somewhere?


Request Headers:
Array
(
[0] => Content-Type: text/namevalue
[1] => X-VPS-Timeout: 45
[2] => X-VPS-VIT-Client-Type: PHP/cURL
[3] => X-VPS-VIT-Integration-Product: PHP::Zen Cart(tm) - PayPal/NVP
[4] => X-VPS-VIT-Integration-Version: 1.3.9h
)


Request Parameters: {SetExpressCheckout}
Array
(
[AMT] => 72.63
[ITEMAMT] => 72.63
[L_NUMBER0] => BEL-079
[L_NAME0] => Belgium 1938 Aeronautical Stamp Set. SG810-SG814.
[L_AMT0] => 4.05
[L_QTY0] => 1
[L_NUMBER1] => BEL-068
[L_NAME1] => Belgium 1930 Independence Set. SG565-SG567.
[L_AMT1] => 1.80
[L_QTY1] => 1
[L_NUMBER2] => BEL-123
[L_NAME2] => Belgium 1942 Prisoner of War Fund Stamp. SG1000.
[L_AMT2] => 4.01
[L_QTY2] => 1
[L_NUMBER3] => BEL-125
[L_NAME3] => Belgium 1943 Prisoner of War Relief Fund Set. SG1013-SG1014.
[L_AMT3] => 2.61
[L_QTY3] => 1
[L_NUMBER4] => BEL-078
[L_NAME4] => Belgium 1944 Victory Definitives Stamps. SG1082-SG1088.
[L_AMT4] => 1.26
[L_QTY4] => 1
[L_NUMBER5] => BEL-034
[L_NAME5] => Belgium 1950 1f.75 Sepia. SG1310.
[L_AMT5] => 0.18
[L_QTY5] => 1
[L_NUMBER6] => BEL-055
[L_NAME6] => Belgium 1955 1830 Revolution Set. SG1559-SG1560.
[L_AMT6] => 0.41
[L_QTY6] => 1
[L_NUMBER7] => BEL-099
[L_NAME7] => Belgium 1954 Rotary International Anniversary Set. SG1540-SG1542
[L_AMT7] => 0.95
[L_QTY7] => 1
[L_NUMBER8] => BEL-058
[L_NAME8] => Belgium 1956 Scaldis Exhibition Stamp. SG1578.
[L_AMT8] => 0.09
[L_QTY8] => 1
[L_NUMBER9] => BEL-021
[L_NAME9] => Belgium 1956 2f. Blue. SG1584.
[L_AMT9] => 0.18
[L_QTY9] => 1
[L_NUMBER10] => BEL-011
[L_NAME10] => Belgium 1956 2f. Red. SG1574.
[L_AMT10] => 0.18
[L_QTY10] => 1
[L_NUMBER11] => BEL-016
[L_NAME11] => Belgium 1957 2f. Blue. SG1611.
[L_AMT11] => 0.14
[L_QTY11] => 1
[L_NUMBER12] => BEL-017
[L_NAME12] => Belgium 1957 4f. Blue, Green and Grey. SG1610.
[L_AMT12] => 0.36
[L_QTY12] => 1
[L_NUMBER13] => BEL-119
[L_NAME13] => Belgium 1957 General Patton Set. SG1621-SG1625.
[L_AMT13] => 14.40
[L_QTY13] => 1
[L_NUMBER14] => BEL-090
[L_NAME14] => Belgium 1957 King Leopold Set. SG1612-SG1613.
[L_AMT14] => 0.32
[L_QTY14] => 1
[L_NUMBER15] => BEL-096
[L_NAME15] => Belgium 1957 Stamp Day. SG1603.
[L_AMT15] => 0.18
[L_QTY15] => 1
[L_NUMBER16] => BEL-091
[L_NAME16] => Belgium 1959 2f.50 Dull Purple. SG1699.
[L_AMT16] => 0.18
[L_QTY16] => 1
[L_NUMBER17] => BEL-043
[L_NAME17] => Belgium 1960 Ghent Flower Show Set. SG1713-SG1715.
[L_AMT17] => 0.99
[L_QTY17] => 1
[L_NUMBER18] => AUT-001
[L_NAME18] => Austria 1915 War Charity Funds Set. SG242-SG246.
[L_AMT18] => 3.15
[L_QTY18] => 1
[L_NUMBER19] => AUT-002
[L_NAME19] => Austria 1926 Child Welfare Set. SG636-SG641.
[L_AMT19] => 3.06
[L_QTY19] => 1
[L_NUMBER20] => AUT-083
[L_NAME20] => Austria 1945 New National Arms Set. SG868-SG890.
[L_AMT20] => 1.80
[L_QTY20] => 1
[L_NUMBER21] => AUT-039
[L_NAME21] => Austria 1947 Prisoners of War Relief Fund. SG1063-SG1068.
[L_AMT21] => 0.72
[L_QTY21] => 1
[L_NUMBER22] => AUT-067
[L_NAME22] => Austria 1947 Surcharge Set. SG1069-SG1070.
[L_AMT22] => 0.27
[L_QTY22] => 1
[L_NUMBER23] => AUT-059
[L_NAME23] => Austria 1948 Reconstruction Fund Set. SG1088-SG1097.
[L_AMT23] => 2.34
[L_QTY23] => 1
[L_NUMBER24] => AUT-007
[L_NAME24] => Austria 1957 2s. Blue - Dragon Fountain Klagenfurt. SG1310.
[L_AMT24] => 0.41
[L_QTY24] => 1
[L_NUMBER25] => AUT-023
[L_NAME25] => Austria 1957 Postal Coach 50th Anniversary . SG1291.
[L_AMT25] => 0.27
[L_QTY25] => 1
[L_NUMBER26] => AUT-018
[L_NAME26] => Austria 1958 4. Red - Inaugural Flight Vienna-London. SG1329.
[L_AMT26] => 0.50
[L_QTY26] => 1
[L_NUMBER27] => AUT-096
[L_NAME27] => Austria 1959 International Hunting Congress Set. SG1338-SG1341.
[L_AMT27] => 1.17
[L_QTY27] => 1
[L_NUMBER28] => AUT-115
[L_NAME28] => Austria 1960 Carinthian Plebiscite Stamp. SG1360.
[L_AMT28] => 0.23
[L_QTY28] => 1
[L_NUMBER29] => AUT-099
[L_NAME29] => Austria 1961 European Transport Minister Stamp. SG1364.
[L_AMT29] => 0.36
[L_QTY29] => 1
[L_NUMBER30] => AUT-117
[L_NAME30] => Austria 1963 3s. Sepia * Yellow. SG1394.
[L_AMT30] => 0.36
[L_QTY30] => 1
[L_NUMBER31] => AUT-040
[L_NAME31] => Austria 1963 Winter Olympic Games Set. SG1401-SG1407.
[L_AMT31] => 2.70
[L_QTY31] => 1
[L_NUMBER32] => AUT-119
[L_NAME32] => Austria 1964 1s.80 Black * Green. SG1417.
[L_AMT32] => 0.18
[L_QTY32] => 1
[L_NUMBER33] => AUT-078
[L_NAME33] => Austria 1964 15th UPU Congress Set. SG1420-SG1427.
[L_AMT33] => 2.88
[L_QTY33] => 1
[L_NUMBER34] => AUT-029
[L_NAME34] => Austria 1967 3s. Blue and Green. SG1496.
[L_AMT34] => 0.32
[L_QTY34] => 1
[L_NUMBER35] => AUS-030
[L_NAME35] => Australia 1946 Victory. Inscr “PEACE 1945”.. SG213-SG215.
[L_AMT35] => 0.59
[L_QTY35] => 1
[L_NUMBER36] => CHE-005
[L_NAME36] => Switzerland 1923 45c Red and Blue - SG323
[L_AMT36] => 0.63
[L_QTY36] => 1
[L_NUMBER37] => MLT-027
[L_NAME37] => Malta 1926 ¼d. Brown. SG143.
[L_AMT37] => 0.32
[L_QTY37] => 1
[L_NUMBER38] => MLT-011
[L_NAME38] => Malta 1938 1d. Green. SG219a.
[L_AMT38] => 0.27
[L_QTY38] => 1
[L_NUMBER39] => MLT-013
[L_NAME39] => Malta 1938 1½d. Slate-Black. SG220b.
[L_AMT39] => 0.14
[L_QTY39] => 1
[L_NUMBER40] => MLT-015
[L_NAME40] => Malta 1938 2d. Scarlet. SG221b.
[L_AMT40] => 0.18
[L_QTY40] => 1
[L_NUMBER41] => MLT-023
[L_NAME41] => Malta 1938 2½d. Dull Violet. SG222a.
[L_AMT41] => 0.27
[L_QTY41] => 1
[L_NUMBER42] => MLT-017
[L_NAME42] => Malta 1938 3d. Blue. SG223a.
[L_AMT42] => 0.14
[L_QTY42] => 1
[L_NUMBER43] => MLT-024
[L_NAME43] => Malta 1938 4½d. Olive-Green * Yellow-Brown. SG224.
[L_AMT43] => 0.23
[L_QTY43] => 1
[L_NUMBER44] => MLT-016
[L_NAME44] => Malta 1938 ¼d. Brown. SG217.
[L_AMT44] => 0.05
[L_QTY44] => 1
[L_NUMBER45] => MLT-010
[L_NAME45] => Malta 1938 ½d. Red-Brown. SG218a.
[L_AMT45] => 0.23
[L_QTY45] => 1
[L_NUMBER46] => MLT-029
[L_NAME46] => Malta 1950 3d. Blue. SG256.
[L_AMT46] => 0.09
[L_QTY46] => 1
[L_NUMBER47] => LTU-002
[L_NAME47] => Lithuania 1940 15c. Brown - Recovery of Vilnius. SG445.
[L_AMT47] => 0.45
[L_QTY47] => 1
[L_NUMBER48] => HUN-010
[L_NAME48] => Hungary 1916 War Charity Stamp Set. SG264-SG266
[L_AMT48] => 0.36
[L_QTY48] => 1
[L_NUMBER49] => HUN-004
[L_NAME49] => Hungary 1920 Returned Prisoner of War Fund Set. SG369-SG371.
[L_AMT49] => 1.35
[L_QTY49] => 1
[L_NUMBER50] => GBR-009
[L_NAME50] => Great Britain 1900 ½d. Blue-Green. SG213.
[L_AMT50] => 0.45
[L_QTY50] => 1
[L_NUMBER51] => GBR-014
[L_NAME51] => Great Britain 1934 1½d. Red-Brown. SG441.
[L_AMT51] => 0.41
[L_QTY51] => 1
[L_NUMBER52] => FIN-004
[L_NAME52] => Finland 1945 Red Cross Fund Set. SG405-SG408.
[L_AMT52] => 0.27
[L_QTY52] => 1
[L_NUMBER53] => FIN-003
[L_NAME53] => Finland 1958 Airmail Stamp. SG585.
[L_AMT53] => 0.50
[L_QTY53] => 1
[L_NUMBER54] => BASU-002
[L_NAME54] => Basutoland 1938 2d. Bright Purple. SG21.
[L_AMT54] => 0.14
[L_QTY54] => 1
[L_NUMBER55] => LKA-004
[L_NAME55] => Ceylon 1938 6c. Black * Blue. SG388.
[L_AMT55] => 0.14
[L_QTY55] => 1
[L_NUMBER56] => NZE-007
[L_NAME56] => New Zealand 1945 Health Stamps. SG665-SG666.
[L_AMT56] => 0.14
[L_QTY56] => 1
[L_NUMBER57] => NZE-009
[L_NAME57] => New Zealand 1946 Peace Issue Set. SG667-SG677.
[L_AMT57] => 1.35
[L_QTY57] => 1
[L_NUMBER58] => NZE-019
[L_NAME58] => New Zealand 1947 2d. Orange. SG680.
[L_AMT58] => 0.14
[L_QTY58] => 1
[L_NUMBER59] => NZE-030
[L_NAME59] => New Zealand 1948 Health Stamps Set. SG696-SG697.
[L_AMT59] => 0.14
[L_QTY59] => 1
[L_NUMBER60] => NZE-002
[L_NAME60] => New Zealand 1948 Otago Centennial Set. SG692-SG695.
[L_AMT60] => 0.45
[L_QTY60] => 1
[L_NUMBER61] => NZE-027
[L_NAME61] => New Zealand 1951 Health Stamps Set. SG708-SG709.
[L_AMT61] => 0.27
[L_QTY61] => 1
[L_NUMBER62] => NZE-026
[L_NAME62] => New Zealand 1953 Royal Visit Set. SG721-SG722.
[L_AMT62] => 0.09
[L_QTY62] => 1
[L_NUMBER63] => LIE-001
[L_NAME63] => 1920 Mounted Mint Full Set: SG28 - SG42
[L_AMT63] => 1.80
[L_QTY63] => 1
[L_NUMBER64] => KUT-013
[L_NAME64] => KUT 1935 1c. Black and Red-Brown. SG110.
[L_AMT64] => 0.45
[L_QTY64] => 1
[L_NUMBER65] => KUT-023
[L_NAME65] => KUT 1938 5c. Reddish Brown and Orange. SG133.
[L_AMT65] => 0.32
[L_QTY65] => 1
[L_NUMBER66] => NRDH-002
[L_NAME66] => Northern Rhodesia 1953 1d. Bluish Green. SG62.
[L_AMT66] => 0.27
[L_QTY66] => 1
[L_NUMBER67] => NYAS-015
[L_NAME67] => Nyasaland 1945 1d. Black * Emerald. SG145.
[L_AMT67] => 0.09
[L_QTY67] => 1
[L_NUMBER68] => NYAS-013
[L_NAME68] => Nyasaland 1945 1½d. Black * Grey-Green. SG146.
[L_AMT68] => 0.14
[L_QTY68] => 1
[L_NUMBER69] => NYAS-014
[L_NAME69] => Nyasaland 1945 3d. Black * Light Blue. SG148.
[L_AMT69] => 0.14
[L_QTY69] => 1
[L_NUMBER70] => NYAS-010
[L_NAME70] => Nyasaland 1945 ½d. Black * Chocolate. SG144.
[L_AMT70] => 0.23
[L_QTY70] => 1
[L_NUMBER71] => NYAS-007
[L_NAME71] => Nyasaland 1953 1½d. Black * Deep Grey-Green. SG175.
[L_AMT71] => 0.09
[L_QTY71] => 1
[L_NUMBER72] => NYAS-009
[L_NAME72] => Nyasaland 1953 2d. Black * Yellow-Orange. SG176a.
[L_AMT72] => 0.18
[L_QTY72] => 1
[L_NUMBER73] => NYAS-006
[L_NAME73] => Nyasaland 1953 2½d. Green * Black. SG177.
[L_AMT73] => 0.09
[L_QTY73] => 1
[L_NUMBER74] => NYAS-005
[L_NAME74] => Nyasaland 1953 3d. Black * Scarlet. SG178.
[L_AMT74] => 0.14
[L_QTY74] => 1
[L_NUMBER75] => NYAS-008
[L_NAME75] => Nyasaland 1953 ½d. Black * Chocolate. SG173a.
[L_AMT75] => 0.05
[L_QTY75] => 1
[L_NUMBER76] => RHNY-005
[L_NAME76] => Rhodesia * Nyasaland 1959 1d. Carmine Red * Black. SG19.
[L_AMT76] => 0.09
[L_QTY76] => 1
[L_NUMBER77] => SARAWAK-006
[L_NAME77] => Sarawak 1950 2c. Red-Orange. SG172.
[L_AMT77] => 0.14
[L_QTY77] => 1
[L_NUMBER78] => SARAWAK-007
[L_NAME78] => Sarawak 1950 3c. Green. SG173.
[L_AMT78] => 0.14
[L_QTY78] => 1
[L_NUMBER79] => SRHD-007
[L_NAME79] => Southern Rhodesia 1953 1d. Green * Brown. SG79.
[L_AMT79] => 0.14
[L_QTY79] => 1
[L_NUMBER80] => SRHD-009
[L_NAME80] => Southern Rhodesia 1953 2d. Deep Chestnut * Reddish Violet. SG80.
[L_AMT80] => 0.14
[L_QTY80] => 1
[L_NUMBER81] => SRHD-001
[L_NAME81] => Southern Rhodesia 1953 Rhodes Centenary Stamp. SG76.
[L_AMT81] => 0.14
[L_QTY81] => 1
[L_NUMBER82] => SRHD-004
[L_NAME82] => Southern Rhodesia 1953 ½d. Grey-Green * Claret. SG78.
[L_AMT82] => 0.14
[L_QTY82] => 1
[L_NUMBER83] => SWAZ-004
[L_NAME83] => Swaziland 1938 2d. Yellow-Brown. SG31a.
[L_AMT83] => 0.18
[L_QTY83] => 1
[L_NUMBER84] => TON-002
[L_NAME84] => Tonga 1944 1d. Black * Carmine. SG83.
[L_AMT84] => 0.05
[L_QTY84] => 1
[L_NUMBER85] => TON-003
[L_NAME85] => Tonga 1944 2d. Black * Purple. SG84.
[L_AMT85] => 0.05
[L_QTY85] => 1
[L_NUMBER86] => TON-009
[L_NAME86] => Tonga 1944 3d. Black * Green. SG85.
[L_AMT86] => 0.05
[L_QTY86] => 1
[L_NUMBER87] => TON-012
[L_NAME87] => Tonga 1953 1d. Black * Red-Brown. SG101.
[L_AMT87] => 0.05
[L_QTY87] => 1
[L_NUMBER88] => TON-011
[L_NAME88] => Tonga 1953 1½d. Blue * Emerald. SG102.
[L_AMT88] => 0.09
[L_QTY88] => 1
[L_NUMBER89] => TTO-010
[L_NAME89] => Trinidad * Tobago 1951 BWI University Set. SG265-SG266.
[L_AMT89] => 0.23
[L_QTY89] => 1
[L_NUMBER90] => TCA-011
[L_NAME90] => Turk and Caicos 1909 ¼d. Red. SG116.
[L_AMT90] => 0.18
[L_QTY90] => 1
[L_NUMBER91] => TCA-003
[L_NAME91] => Turk and Caicos 1938 6d. Sepia. SG201a.
[L_AMT91] => 0.18
[L_QTY91] => 1
[L_NUMBER92] => TCA-001
[L_NAME92] => Turk and Caicos 1946 Victory Set. SG206-SG207.
[L_AMT92] => 0.09
[L_QTY92] => 1
[L_NUMBER93] => ADEN-006
[L_NAME93] => Qu'aiti State 1946 Victory Set. SG12-Sg13.
[L_AMT93] => 0.18
[L_QTY93] => 1
[L_NUMBER94] => ATG-008
[L_NAME94] => Antigua 1946 Victory Set. SG110-SG111.
[L_AMT94] => 0.09
[L_QTY94] => 1
[L_NUMBER95] => ATG-001
[L_NAME95] => Antigua 1938 ½d. Green. SG98.
[L_AMT95] => 0.18
[L_QTY95] => 1
[L_NUMBER96] => BHS-007
[L_NAME96] => Bahamas 1946 Victory Set. SG176-SG177.
[L_AMT96] => 0.05
[L_QTY96] => 1
[L_NUMBER97] => BRB-008
[L_NAME97] => Barbados 1950 1c. Indigo. SG271.
[L_AMT97] => 0.14
[L_QTY97] => 1
[L_NUMBER98] => BRB-012
[L_NAME98] => Barbados 1950 2c. Emerald-Green. SG272.
[L_AMT98] => 0.09
[L_QTY98] => 1
[L_NUMBER99] => BRB-010
[L_NAME99] => Barbados 1950 4c. Carmine. SG274.
[L_AMT99] => 0.09
[L_QTY99] => 1
[L_NUMBER100] => BRB-013
[L_NAME100] => Barbados 1950 6c. Light Blue. SG275.
[L_AMT100] => 0.09
[L_QTY100] => 1
[L_NUMBER101] => FJI-005
[L_NAME101] => Fiji 1938 1d. Brown and Blue. SG250.
[L_AMT101] => 0.18
[L_QTY101] => 1
[L_NUMBER102] => FJI-002
[L_NAME102] => Fiji 1938 ½d. Green. SG249.
[L_AMT102] => 0.09
[L_QTY102] => 1
[L_NUMBER103] => FJI-009
[L_NAME103] => Fiji 1953 Royal Visit Stamp. SG279.
[L_AMT103] => 0.09
[L_QTY103] => 1
[L_NUMBER104] => GMB-004
[L_NAME104] => Gambia 1946 Victory Set. SG162-SG163.
[L_AMT104] => 0.09
[L_QTY104] => 1
[L_NUMBER105] => MYS-005
[L_NAME105] => Kedah 1959 1c. Black. SG104.
[L_AMT105] => 0.05
[L_QTY105] => 1
[L_NUMBER106] => IND-058
[L_NAME106] => India 1949 3p. Slate-Violet. SG309.
[L_AMT106] => 0.09
[L_QTY106] => 1
[L_NUMBER107] => IND-062
[L_NAME107] => India 1949 6p. Purple-Brown. SG310.
[L_AMT107] => 0.09
[L_QTY107] => 1
[L_NUMBER108] => IND-042
[L_NAME108] => India 1955 3p. Bright Purple. SG354.
[L_AMT108] => 0.14
[L_QTY108] => 1
[L_NUMBER109] => IND-134
[L_NAME109] => India 1957 Red Cross Stamp. SG388.
[L_AMT109] => 0.05
[L_QTY109] => 1
[L_NUMBER110] => IND-013
[L_NAME110] => India 1957 Universities Set. SG392-SG394.
[L_AMT110] => 0.27
[L_QTY110] => 1
[L_NUMBER111] => IND-023
[L_NAME111] => India 1958 India Exhibition Stamp. SG421.
[L_AMT111] => 0.05
[L_QTY111] => 1
[L_NUMBER112] => IND-110
[L_NAME112] => India 1958 Steel Industry Stamp. SG395.
[L_AMT112] => 0.05
[L_QTY112] => 1
[L_NUMBER113] => IND-140
[L_NAME113] => India 1959 15n.p. Brown. SG422.
[L_AMT113] => 0.05
[L_QTY113] => 1
[L_NUMBER114] => IND-026
[L_NAME114] => India 1962 Wild Life Week Stamp. SG460.
[L_AMT114] => 0.18
[L_QTY114] => 1
[L_NUMBER115] => IND-081
[L_NAME115] => India 1963 Defence Campaign Stamp. SG468-SG469.
[L_AMT115] => 1.22
[L_QTY115] => 1
[L_NUMBER116] => IND-154
[L_NAME116] => India 1965 15p. Deep Reddish Purple. SG503.
[L_AMT116] => 0.23
[L_QTY116] => 1
[L_NUMBER117] => IND-150
[L_NAME117] => India 1965 Maritime Day Stamp. SG498.
[L_AMT117] => 0.14
[L_QTY117] => 1
[L_NUMBER118] => IND-130
[L_NAME118] => India 1966 15p. Slate. SG526.
[L_AMT118] => 0.05
[L_QTY118] => 1
[DESC] => Tax included in prices: 0 (0)
[LOCALECODE] => GB
[PAYMENTACTION] => Sale
[ALLOWNOTE] => 1
[LANDINGPAGE] => Billing
[EMAIL] => ***
[SHIPTOPHONENUM] => ***
[RETURNURL] => https://kayatana.com/ipn_main_handler.php?type=ec
[CANCELURL] => https://kayatana.com/index.php?main_page=checkout_shipping&ec_cancel=1
[PAGESTYLE] => Primary
[METHOD] => SetExpressCheckout
[CURRENCYCODE] => GBP
[USER] => p
[PWD] => ****************
[VERSION] => 60.0
[SIGNATURE] => ****************************************************go1H
)


Response:
Array
(
[TIMESTAMP] => 2011-02-08T23:09:28Z
[CORRELATIONID] => 209f8b65d
[ACK] => Failure
[VERSION] => 60.0
[BUILD] => 1721431
[L_ERRORCODE0] => 10413
[L_SHORTMESSAGE0] => Transaction refused because of an invalid argument. See additional error messages for details.
[L_LONGMESSAGE0] => The totals of the cart item amounts do not match order amounts.
[L_SEVERITYCODE0] => Error
[CURL_ERRORS] =>
)