"[Error] CODE: invoiceSignedDataDigestValue, MESSAGE: wrong invoice hashing." "[Error] CODE: signatureValue, MESSAGE: Wrong signature value."

SDK, web-based validator and sandbox
1

We are currently encountering an issue during the **validation of invoice B2C ** before complaince check while performing onboarding. Although our B2B onboarding process completes successfully, But the before compliance signing the invoice working but validation gives error.

<?xml version="1.0" encoding="UTF-8"?> urn:oasis:names:specification:ubl:dsig:enveloped:xades urn:oasis:names:specification:ubl:signature:1 urn:oasis:names:specification:ubl:signature:Invoice not(//ancestor-or-self::ext:UBLExtensions) not(//ancestor-or-self::cac:Signature) not(//ancestor-or-self::cac:AdditionalDocumentReference[cbc:ID='QR']) z/Ud1wYM0mB8nJKi2+gb7nybOGZpCD9nXocaoecYXyY= MTY4YzdlNDYyMDRlZTlhZmJlZWRhZmY5OGZkYzhjMDM2MTAwZDAzNGMyYjg4N2NlMTUxMzhhZWJiZGYzZWUzOQ== MEUCIQDGRO86+GqMO/lALdr+rSYHrnLSsvQk31Z2PiPTDEekigIgJbaaLXa/VxVJnej+5Wllafrd149VdlliZhR5bl8ICc4= 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 2025-07-16T13:58:49 NTczN2Y4ZDM5Y2MxYzhkNzFiOWY5ZjZiZTVjMDM0YTZhYWEyM2ViZDA5ODY5MjA1MTBiZmYxODZkNjdlOWY5Yg== CN=eInvoicing 1752591132362 reporting:1.0 SME00010 8e6000cf-1a98-4174-b3e7-b5d5954bc10d 2025-07-16 17:41:08 388 ABC SAR SAR ICV 10 PIH NWZlY2ViNjZmZmM4NmYzOGQ5NTI3ODZjNmQ2OTZjNzljMmRiYzIzOWRkNGU5MWI0NjcyOWQ3M2EyN2ZiNTdlOQ== QR 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 urn:oasis:names:specification:ubl:signature:Invoice urn:oasis:names:specification:ubl:dsig:enveloped:xades 4033365774 الامير سلطان 3242 4323 32423423 الرياض | Riyadh 32432 SA 310443967500003 VAT Branch AYM Marketing Management Company 32423423 SA VAT 10 false discount 0.00 S 15 VAT S 15 VAT 30.15 30.15 201.00 30.15 S 15.00 VAT 201.00 201.00 231.15 0.00 0.00 231.15 1 33.000000 99.00 14.85 113.85 كتاب S 15.00 VAT 3.00 false discount 0.00 2 3.000000 102.00 15.30 117.30 قلم S 15.00 VAT 34.00 false discount 0.00
2

Dear @Yaseen1,

To understand your message clearly, you have completed the full onboarding process sucessfully and now you are able to see the onboarded device under Fatoora’s onboarded devices list, but you start to face a signature releated issue with the reporting API.

If this is true and everything is fine on the compliance checks, then the issue is probably that you didn’t update the CSID to the PCSID to sign with, after obtaining the production CSID, then you need to use it for signing B2C tax documents as well.

If the issue is still persists, please let us know with further details.

Regards,