# Invalid CSR - ZATCA Communication error (Bad Request 400) **URL:** \ **Category:** Onboarding, renewal and revocation\ **Created:** [November 6, 2024, 12:26pm UTC](https://zatca1.discourse.group/t/invalid-csr-zatca-communication-error-bad-request-400/4073 "2024-11-06T12:26:28Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![muthusamycse](https://avatars.discourse-cdn.com/v4/letter/m/ad7895/32.png) [@muthusamycse](https://zatca1.discourse.group/u/muthusamycse)\ **Post date:** [November 6, 2024, 12:26pm UTC](https://zatca1.discourse.group/t/invalid-csr-zatca-communication-error-bad-request-400/4073/1 "2024-11-06T12:26:28Z")
Dear, For Simulation portal, we are trying to generate the CCSID using the power shell script. and getting the error response. ![CSID Error](https://europe1.discourse-cdn.com/flex013/uploads/zatca1/original/1X/0ae6b3f778e9450e619c684ee3cbc41efca208f6.jpeg) **CSRCONFIG** oid\_section = OIDs [OIDs] certificateTemplateName = 1.3.6.1.4.1.311.20.2 [req] default\_bits = 2048 emailAddress = abgzakat@abg.com.sa req\_extensions = v3\_req x509\_extensions = v3\_ca prompt = no default\_md = sha 256 req\_extensions = req\_ext distinguished\_name = dn [dn] C=SA OU=Headoffice O=Al Blagha Industrial Company CN=PREZATCA-Code-Signing [v3\_req] basicConstraints = CA:FALSE keyUsage = digitalSignature, nonRepudiation, keyEncipherment [req\_ext] certificateTemplateName = ASN1:PRINTABLESTRING:PREZATCACode-Signing subjectAltName = dirName:alt\_names [alt\_names] SN=1-TST|2-TST|3-6ec77209-b72f-4a28-901d-4573d6d04bdc UID=300049785700003 title=1100 registeredAddress=Riyadh businessCategory=Service ---
**Author:** ![saalotaibi](https://avatars.discourse-cdn.com/v4/letter/s/f9ae1b/32.png) [@saalotaibi](https://zatca1.discourse.group/u/saalotaibi)\ **Post date:** [November 6, 2024, 12:48pm UTC](https://zatca1.discourse.group/t/invalid-csr-zatca-communication-error-bad-request-400/4073/2 "2024-11-06T12:48:08Z")
Dear, Can you please share more details regarding the steps taking from your side on generating the CSR? If you still encounter issues, please don’t hesitate to reach out with our support team via email: SP email: sp\_support@zatca.gov.sa Thanks & Regards, ---
**Author:** ![sameer](https://avatars.discourse-cdn.com/v4/letter/s/bbce88/32.png) [@sameer](https://zatca1.discourse.group/u/sameer)\ **Post date:** [November 12, 2024, 7:24am UTC](https://zatca1.discourse.group/t/invalid-csr-zatca-communication-error-bad-request-400/4073/3 "2024-11-12T07:24:00Z")
@muthusamycse , Is your issue resolved, if so can you tell necessary changes you have done for the resolution. ---
**Author:** ![sameer](https://avatars.discourse-cdn.com/v4/letter/s/bbce88/32.png) [@sameer](https://zatca1.discourse.group/u/sameer)\ **Post date:** [November 12, 2024, 7:24am UTC](https://zatca1.discourse.group/t/invalid-csr-zatca-communication-error-bad-request-400/4073/4 "2024-11-12T07:24:08Z")
@saalotaibi , earlier it was working fine, from last week we are also facing this issue. Can you help identify what changes are required to resolve this issue. ---
**Author:** ![idaoud](https://avatars.discourse-cdn.com/v4/letter/i/f9ae1b/32.png) [@idaoud](https://zatca1.discourse.group/u/idaoud)\ **Post date:** [November 12, 2024, 8:22am UTC](https://zatca1.discourse.group/t/invalid-csr-zatca-communication-error-bad-request-400/4073/5 "2024-11-12T08:22:39Z")
Dear @sameer Thanks for reaching out, Can I kindly ask you to elaborate more in your concerns to ensure comprehensive support as usual? Thanks, Ibrahem Daoud. ---
**Author:** ![sameer](https://avatars.discourse-cdn.com/v4/letter/s/bbce88/32.png) [@sameer](https://zatca1.discourse.group/u/sameer)\ **Post date:** [November 17, 2024, 2:14pm UTC](https://zatca1.discourse.group/t/invalid-csr-zatca-communication-error-bad-request-400/4073/6 "2024-11-17T14:14:12Z")
@idaoud , We have provided all the necessary information for onboarding to simulation, but we are still receiving 400 Error code, Invalid CSR response from the API. Below is the configuration information . Please check & advices. oid\_section = OIDs [OIDs] certificateTemplateName= 1.3.6.1.4.1.311.20.2 [req] default\_bits = 2048 emailAddress = it@example.sa req\_extensions = v3\_req x509\_extensions = v3\_ca prompt = no default\_md = sha256 req\_extensions = req\_ext distinguished\_name = dn [v3\_req] basicConstraints = CA:FALSE keyUsage = digitalSignature, nonRepudiation, keyEncipherment [req\_ext] certificateTemplateName = ASN1:PRINTABLESTRING:PREZATCA-Code-Signing subjectAltName = dirName:alt\_names [dn] C=SA # Country Code e.g SA OU=INDEPENDENT FOOD COMPANY LTD # Organization Unit Name O=INDEPENDENT FOOD COMPANY LTD # Organization Name CN=POS487 # Common Name [alt\_names] SN=1-Taxilla|2-IFCLSIM|3-0611240122 # EGS Serial Number 1-ABC|2-PQR|3-XYZ UID=310096252500003 # Organization Identifier (VAT Number) title=0100 # Invoice Type registeredAddress=Riyadh # Address businessCategory=Restaurant # Business Category ---
**Author:** ![idaoud](https://avatars.discourse-cdn.com/v4/letter/i/f9ae1b/32.png) [@idaoud](https://zatca1.discourse.group/u/idaoud)\ **Post date:** [November 18, 2024, 8:04am UTC](https://zatca1.discourse.group/t/invalid-csr-zatca-communication-error-bad-request-400/4073/7 "2024-11-18T08:04:07Z")
Morning @sameer Thanks for reaching out, Can I kindly ask you to provide the CSR for the above .cnf config data. Additionally, what are the steps that you followed to generate the CSR? Thanks, Ibrahem Daoud. ---
**Author:** ![mhmdAhmd](https://avatars.discourse-cdn.com/v4/letter/m/65b543/32.png) [@mhmdAhmd](https://zatca1.discourse.group/u/mhmdAhmd)\ **Post date:** [December 15, 2024, 9:42am UTC](https://zatca1.discourse.group/t/invalid-csr-zatca-communication-error-bad-request-400/4073/8 "2024-12-15T09:42:37Z")
Is there any solution found for this problem ???! ---
**Author:** ![idaoud](https://avatars.discourse-cdn.com/v4/letter/i/f9ae1b/32.png) [@idaoud](https://zatca1.discourse.group/u/idaoud)\ **Post date:** [December 15, 2024, 9:54am UTC](https://zatca1.discourse.group/t/invalid-csr-zatca-communication-error-bad-request-400/4073/9 "2024-12-15T09:54:21Z")
Dear @mhmdAhmd Thanks for reaching out, Welcome to our community. To provide comprehensive support as usual, can I kindly ask you to share your full concerns about this mentioning all the steps that you followed? Thanks, Ibrahem Daoud.