Somo la 1DE32 Code ya Kutambulisha Taasisi ya Kuchukua: umbizo (LLVAR hadi 11n), matumizi katika kupeleka na kutambulisha mchambuziInaelezea umbizo la nambari LLVAR la DE32 na jinsi vitambulishi vya mchambuzi vinavyotolewa. Inaelezea kupeleka kwa mchambuzi sahihi, usanidi wa mchambuzi wengi, na jinsi DE32 inavyofanya kazi na jedwali maalum za kupeleka mtandao.
LLVAR format and numeric constraintsAcquirer ID assignment and governanceUse of DE32 in network routingMulti-acquirer and aggregator modelsLogging DE32 for settlement mappingSomo la 2DE41 Kutambulisha Terminali ya Kuchukua Kadi: umbizo (8an), kupeleka terminali na kuingizaInaelezea umbizo la DE41, sheria za umoja, na jinsi terminali zinavyotambulishwa katika wauzaji na maeneo. Inashughulikia kupeleka, kufuatilia, uchambuzi wa udanganyifu, na jinsi ID za terminali zinavyofanya kazi na vya tabaka vya mchambuzi na duka.
8an format and allowed charactersTerminal ID uniqueness strategiesTerminal ID in routing and profilesTerminal ID in fraud and risk rulesTerminal inventory and lifecycle useSomo la 3DE2 Nambari ya Akaunti ya Msingi (PAN): jina la uwanja, umbizo (LLVAR hadi 19 nambari), na jukumu katika kupeleka/BIN tafutaInaelezea muundo wa DE2, sheria za urefu wa PAN, na kuandika LLVAR. Inaelezea anuwai za BIN, maamuzi ya kupeleka, na jinsi PAN inavyoongoza utambulisho wa mpango, bidhaa, na mchambuzi huku ikizingatia vizuizi vya kufunika na PCI katika rekodi.
LLVAR encoding and PAN length limitsBIN ranges and issuer identificationPAN role in network routing decisionsPAN validation and Luhn check usageMasking PAN in logs and PCI impactsSomo la 4DE38 Kutambulisha Majibu ya Uidhinishaji: umbizo (6an), nambari ya uidhinishaji ya benki ya kutoa na matumizi ya ukaguziInaelezea muundo wa DE38, herufi zinazoruhusiwa, na jinsi wachangiaji wanavyozalisha nambari za uidhinishaji. Inashughulikia matumizi katika rekodi za mwenyeji, rekodi za mchambuzi, na michakato ya migogoro, pamoja na sheria za uthabiti kati ya ujumbe wa ombi na majibu.
Format 6an and character constraintsIssuer code generation strategiesMapping DE38 across request/responseUse in acquirer and issuer audit logsRole in chargeback and dispute researchSomo la 5DE3 Code ya Uchakataji: umbizo (6n), sehemu za maana (aina ya shughuli, aina ya akaunti), na jukumu katika kupeleka shughuliInaelezea muundo wa DE3, ikijumuisha aina ya shughuli, nambari za akaunti kutoka na kwenda. Inaonyesha jinsi nambari ya uchakataji inavyoongoza kupeleka, mantiki ya ada, na sheria za uidhinishaji kwa ununuzi, pesa taslimu, kurudisha, na michakato ya kurekebisha.
6n layout and segment meaningsCommon purchase and cash codesAccount selection and subaccount useRouting and fee rule determinationReversal and adjustment processingSomo la 6DE39 Code ya Majibu: umbizo (2an), sheria za tafsiri na maadili ya kawaida ya majibuInaelezea umbizo la DE39, maadili ya kawaida ya majibu, na kupanga kwa matokeo ya biashara. Inashughulikia wajibu wa mchambuzi na mtandao, matibabu ya kukataa dhidi ya rejea, na jinsi wachambuzi wanavyotafsiri nambari zisizo wazi.
2an format and value rangesCommon approval and decline codesSoft declines and retry guidanceIssuer versus network generated codesMapping codes to merchant messagesSomo la 7DE37 Nambari ya Rejea ya Kuchukua: umbizo (12an), jukumu katika upatanisho, migogoro, na kufuatiliaInaelezea umbizo la DE37, mantiki ya kuzalisha, na umoja wakati na mifumo. Inaelezea jinsi RRN inavyounga mkono upatanisho, utafiti wa migogoro, na kufuatilia mtandao-shirikisho wa shughuli zinazohusiana.
12an format and structure optionsRRN generation and uniquenessUse in reconciliation processesRole in chargebacks and disputesCross-network transaction trackingSomo la 8DE14 Tarehe ya Kutoa: umbizo (YYMM), uthibitisho wa kadi na vichocheo vya kukataaInashughulikia umbizo la DE14, sheria za uthibitisho, na ukaguzi wa mchambuzi wakati wa uidhinishaji. Inaelezea jinsi mwaka wa kuhitimu unavyoingiliana na hali ya kadi, kurudisha, na jinsi mitandao na wachambuzi wanavyoshughulikia kadi zinazokaribia kuhitimu.
YYMM format and parsing rulesIssuer validation of expiry dateExpired card decline scenariosNear-expiry and renewal handlingStorage and masking in host logsSomo la 9DE4 Kiasi, Shughuli: umbizo (12n), matibabu ya sarafu, na athari za malipoInaelezea umbizo la DE4, upanuzi kwa vitengo vidogo, na upatanisho wa sarafu na DE49. Inaelezea jinsi kiasi cha uidhinishaji kinavyoathiri kushikilia, kuidhinisha kwa sehemu, vidokezo, na tofauti za kusafisha na malipo baadaye.
12n format and minor unit handlingCurrency consistency with DE49Preauthorization and hold amountsPartial approvals and tip handlingImpact on clearing and settlementSomo la 10DE22 Hali ya Ingizo la Mahali pa Huduma: umbizo (3n), maadili kwa kadi iliyopo, chip, contactless, iliyoandikwaInashughulikia umbizo la DE22 na kuandika kwa magstripe, chip, contactless, na ingizo la mkono. Inaelezea jinsi hali ya ingizo inavyoathiri alama ya hatari, matibabu ya kurudisha, wajibu, na mikakati ya uidhinishaji wa mchambuzi kwa njia tofauti.
3n structure and subfield meaningsCard-present versus card-not-presentChip, contactless, and fallback codingManual and key-entered transaction flagsImpact on risk, fraud, and liabilitySomo la 11DE7 Tarehe na Wakati wa Kupeleka: umbizo (MMDDhhmmss), jukumu katika kuingiza, muda wa kukatiza, na upatanishoInaelezea maelezo umbizo la DE7, mazingatio ya eneo la wakati, na usawazishaji na saa za mwenyeji. Inaelezea jukumu lake katika matibabu ya muda wa kukatiza, kugundua nakala, upatanisho, na kupata uidhinishaji na rekodi za kusafisha.
MMDDhhmmss format and examplesTime zone and clock sync issuesUse in timeout and retry handlingDuplicate and late message detectionReconciliation and settlement matchingSomo la 12DE49 Code ya Sarafu ya Shughuli: umbizo (3n, nambari za ISO 4217), athari za ubadilishaji sarafu na kupelekaInashughulikia kuandika nambari nyingi za ISO 4217 za DE49, uhusiano na DE4 na DE51, na jinsi nambari za sarafu zinavyoathiri kupeleka, ubadilishaji wa FX, na usanidi wa mchambuzi wa sarafu nyingi katika mtiririko wa uidhinishaji.
3n ISO 4217 numeric codesAlignment with DE4 and DE51Multi-currency merchant scenariosFX conversion and DCC decisionsRouting based on currency fieldsSomo la 13DE11 Nambari ya Ukaguzi ya Mfuatiliaji wa Mfumo (STAN): umbizo (6n), umoja, uhusiano kati ya ombi/majibuInashughulikia umbizo la nambari la DE11, sheria za kuzalisha, na madirisha ya umoja. Inaelezea jinsi STAN inavyounganisha maombi na majibu, inaunga mkono kufuatilia katika mifumo, na inafanya kazi na RRN na funguo za ukaguzi za ndani.
6n format and rollover behaviorSTAN generation at switch or hostUniqueness windows and collisionsCorrelation of request and responseUse in monitoring and incident traces