# NFE-1121

Source: https://xmlvalid.com/rules/NFE-1121

> Rejeição: Total da CBS monofásica sujeita à retenção difere da soma dos itens.

- Level: error
- Rule sets: SEFAZ authorisation rules of NF-e 4.00 MOC 7.0 Anexo I, NTs up to 2026.010
- Context: `nfe:infNFe/nfe:total`
- Test: `not($ibs/nfe:gMono) or br:dec($ibs/nfe:gMono/nfe:vCBSMonoReten) = br:sum($mono//nfe:vCBSMonoReten)`

In English: The total of monophasic CBS subject to retention is not the sum of the items'.

Validate a document against these rules: https://xmlvalid.com/validate
