--- title: "IIN Does Not Match Certificate Error When Issuing ЭСФ" country: KZ lang: en author: Сапа Т.И. (https://buhgpt.kz/authors/sapa-ti) date: 2026-09-23 canonical: https://buhgpt.kz/suraqtar/oshibka-iin-ne-sootvetstvuet-sertifikatu-pri-vypiske-esf-en source: BuhGPT --- # IIN Does Not Match Certificate Error When Issuing ЭСФ > **TL;DR:** The "IIN does not match the certificate" error when issuing an ESF (electronic invoice) occurs due to a discrepancy between the IIN specified in the employee's individual card in the program and the IIN embedded in the electronic digital signature (certificate) used to sign th --- The "IIN does not match the certificate" error when issuing an ESF (electronic invoice) occurs due to a discrepancy between the IIN specified in the employee's individual card in the program and the IIN embedded in the electronic digital signature (certificate) used to sign the document. The system compares these two values during signing, and if they do not match, it cannot correctly identify the signer. To resolve the problem, you need to bring the IIN in the employee's card into line with the IIN from the EDS certificate and repeat the operation. Why the error occurs When issuing an electronic invoice, the document is signed with the EDS of a specific individual. The IIN of its owner is firmly embedded in the EDS certificate — this value is set when the key is obtained and cannot be changed in the certificate itself. At the same time, the program (1C:Accounting for Kazakhstan) also stores the IIN in the individual card of the employee who acts as the signer. When sending the ESF, the system compares the IIN from the card with the IIN from the certificate. If these values differ, the signer's identification fails and this error appears. Typical root causes of the discrepancy: - the IIN in the individual's card was entered with a typo or contains extra characters/spaces; - the IIN in the card is not filled in at all, or the IIN of another person is specified; - the EDS certificate of another employee was selected for signing (for example, the manager instead of the accountant); - the employee changed the EDS, but the card retained the old data, or vice versa — the individual's data changed, but the key is old; - an expired or someone else's key remaining in the storage is being used. How to fix You need to check the individual card of the employee who issues the document and compare their IIN with the IIN specified in the EDS certificate. If the data does not match — that is the cause of the error. You must bring the IIN in the employee's card into line with the IIN from the certificate so that the system correctly identifies the signer and the document is issued without errors. After correcting the IIN in the individual's card, repeat the operation — the error should disappear. Step-by-step procedure - Determine whose EDS you are signing the ESF with, and open the certificate details to see the IIN of the key owner. Write down or copy this value. - Find the signing employee in the program and open their individual card. - Compare the IIN in the individual's card with the IIN from the certificate — they must match completely, character by character. - If the IIN in the card differs, is missing, or contains a typo — correct it to the value from the certificate and save the card. - Make sure that the certificate selected for signing is the one that belongs to this employee, and not to another person. - Repeat issuing and signing the ESF. With correct data, the error no longer appears. If the IIN in the card is correct It happens that the IIN in the individual's card is correct, but the error persists. In this case, check the other side — the certificate itself: - make sure that the required key is selected during signing, and not another certificate from the storage; - check whether the certificate of another employee or organization was mistakenly selected; - if the employee recently reissued the EDS, make sure that the current key is used, and not the old one; - if the individual's data (including the IIN) has actually changed, compare it with the person to whom the certificate is actually issued. The rule is simple: priority goes to the IIN embedded in the certificate, since it cannot be changed. The data in the program is adjusted to the certificate, and not the other way around. Typical mistakes - They correct the IIN "by eye", without comparing it with the certificate — and get a discrepancy again. - They change the IIN in the counterparty's card or in the organization's details, whereas the problem is in the individual signer's card. - They do not notice an extra space or an invisible character in the IIN field, due to which the values formally do not match. - They sign the ESF with the key of one employee, while another responsible person is specified in the document. - They continue to use the old key after the EDS was reissued. - They do not save the card after editing the IIN and repeat the operation with the old data. What to check - The IIN in the EDS certificate — open the key properties and look at the owner's IIN; this is the reference value. - The IIN in the individual's card of the signing employee in the program — it must match the IIN from the certificate. - The key selected during signing — whether it belongs to this particular employee. - The absence of typos, spaces, and extra characters in the IIN field. - The relevance of the EDS — whether an old key is being used after reissue. - The fact of saving the corrected card before reissuing. After the IIN in the individual's card has been brought into line with the IIN from the certificate and the correct key has been selected, reissuing the ESF proceeds without a signer identification error. --- _BuhGPT — ИИ-помощник для бухгалтеров Казахстана: https://buhgpt.kz_