Simplified B2C invoice xml errors

Hi

I am currently working on the XML for a simplified B2C invoice and have successfully completed the first four steps of the process. This includes generating the hash and ECDSA signature and correctly embedding them within the XML.

However, I have encountered an issue at step 5. Specifically, I am unable to locate the tag referenced in this step using XPath within the XML. Despite following the documentation closely, the tag in question does not seem to be present or accessible.

Could anyoen please advise on where I might locate this tag, or a valid approach to proceed with step 5? Any guidance anyone can provide would be greatly appreciated.

Thank you for your assistance.

document link


You can refer to this link

https://zatca1.discourse.group/uploads/short-url/vlHNRGtXbkw5sv40gchVevwarmQ.pdf